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text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 270px; margin-left: 21px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><div>Extension API namespace</div><div>(WebIDL - C++)<br /></div></div></div></div></foreignObject><text x="80" y="274" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">Extension API namesp...</text></switch></g><path d="M 500 270 L 573.63 270" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="stroke"/><path d="M 578.88 270 L 571.88 273.5 L 573.63 270 L 571.88 266.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/><rect x="380" y="240" width="120" height="60" fill="#ffffff" stroke="#000000" pointer-events="all"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 118px; height: 1px; padding-top: 270px; margin-left: 381px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><div>mozIExtensionAPI</div><div>RequestHandler<br /></div><div>(XPCOM - JS)<br /></div></div></div></div></foreignObject><text x="440" y="274" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">mozIExtensionAPI...</text></switch></g><path d="M 170 303 L 170 280 L 370 280 L 370 303" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="all"/><path d="M 170 303 L 170 480 L 370 480 L 370 303" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 170 303 L 370 303" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g fill="#000000" font-family="Helvetica" font-weight="bold" pointer-events="none" text-anchor="middle" font-size="12px"><text x="269.5" y="296">mozIExtensionAPIRequest</text></g><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 1px; height: 1px; padding-top: 400px; margin-left: 187px;"><div style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: nowrap;"><div><ul><li>apiNamespace</li><li>apiName<br /></li><li>apiObjectType</li><li><div align="left">apiObjectId</div></li><li>callerSavedFrame</li><li>serviceWorkerInfo</li><li>args</li><li>normalizedArgs (R/W)<br /></li></ul></div></div></div></div></foreignObject><text x="187" y="404" fill="#000000" font-family="Helvetica" font-size="12px">apiNamespaceapiName...</text></switch></g><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 320px; margin-left: 260px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: nowrap;"><div>(XPCOM - C++)</div></div></div></div></foreignObject><text x="260" y="324" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">(XPCOM - C++)</text></switch></g><path d="M 350 110 L 530 110 L 530 200 L 460 200 L 440 230 L 440 200 L 350 200 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 178px; height: 1px; padding-top: 155px; margin-left: 352px;"><div style="box-sizing: border-box; font-size: 0px; text-align: left;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><ul><li>retrieve WorkerContextChild<br /></li><li>validate and normalize arguments</li><li>check permissions<br /></li></ul></div></div></div></foreignObject><text x="352" y="159" fill="#000000" font-family="Helvetica" font-size="12px">retrieve WorkerContextChild...</text></switch></g><path d="M 660 300 L 660 343.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 660 348.88 L 656.5 341.88 L 660 343.63 L 663.5 341.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="580" y="240" width="160" height="60" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 158px; height: 1px; padding-top: 270px; margin-left: 581px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div>WebIDL</div><div>ChildAPIManager</div><div>(extends ChildAPIManager)<br /></div></div></div></div></foreignObject><text x="660" y="274" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">WebIDL...</text></switch></g><path d="M 660 530 L 660 603.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 660 608.88 L 656.5 601.88 L 660 603.63 L 663.5 601.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="570" y="470" width="180" height="60" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 500px; margin-left: 571px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div>WebIDL</div><div>ChildLocalAPIImpl<br /></div><div>(extends ChildLocalAPIImpl)<br /></div></div></div></div></foreignObject><text x="660" y="504" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">WebIDL...</text></switch></g><path d="M 660 380 L 660 463.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 660 468.88 L 656.5 461.88 L 660 463.63 L 663.5 461.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 640 365 L 530 365 L 530 378.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 530 383.88 L 526.5 376.88 L 530 378.63 L 533.5 376.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 680 365 L 773.63 365" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 778.88 365 L 771.88 368.5 L 773.63 365 L 771.88 361.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 660 350 L 680 365 L 660 380 L 640 365 Z" fill="#ffffff" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 530 445 L 530 640 L 563.63 640" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 568.88 640 L 561.88 643.5 L 563.63 640 L 561.88 636.5 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="440" y="385" width="180" height="60" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 415px; margin-left: 441px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div>WebIDL</div><div>ChildObjectTypeIImpl<br /></div><div>(extends ChildLocalAPIImpl)<br /></div></div></div></div></foreignObject><text x="530" y="419" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">WebIDL...</text></switch></g><path d="M 850 347.5 L 850 281.37" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 850 276.12 L 853.5 283.12 L 850 281.37 L 846.5 283.12 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="780" y="347.5" width="140" height="35" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 365px; margin-left: 781px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;">ProxyAPIImplementation</div></div></div></foreignObject><text x="850" y="369" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">ProxyAPIImplementation</text></switch></g><path d="M 885 240 L 885 41.37" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 885 36.12 L 888.5 43.12 L 885 41.37 L 881.5 43.12 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="780" y="240" width="140" height="35" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 258px; margin-left: 781px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;">ProcessConduitsChild</div></div></div></foreignObject><text x="850" y="261" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">ProcessConduitsChild</text></switch></g><path d="M 815 35 L 815 233.63" fill="none" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><path d="M 815 238.88 L 811.5 231.88 L 815 233.63 L 818.5 231.88 Z" fill="#000000" stroke="#000000" stroke-miterlimit="10" pointer-events="none"/><rect x="780" y="0" width="140" height="35" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 138px; height: 1px; padding-top: 18px; margin-left: 781px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;">ProcessConduitsParent</div></div></div></foreignObject><text x="850" y="21" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">ProcessConduitsParent</text></switch></g><rect x="570" y="610" width="180" height="60" fill="#ffffff" stroke="#000000" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 178px; height: 1px; padding-top: 640px; margin-left: 571px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div>ext-APINAMESPACE.js</div><div>ExtensionAPI subclass<br /></div></div></div></div></foreignObject><text x="660" y="644" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">ext-APINAMESPACE.js...</text></switch></g><path d="M 160 700 L 160 100" fill="none" stroke="#000000" stroke-miterlimit="10" stroke-dasharray="3 3" pointer-events="none"/><path d="M 1040 100 L 0 100" fill="none" stroke="#000000" stroke-miterlimit="10" stroke-dasharray="3 3" pointer-events="none"/><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 88px; height: 1px; padding-top: 70px; margin-left: 951px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div align="justify"><b>PARENT</b></div><div align="justify"><b>PROCESS</b></div></div></div></div></foreignObject><text x="995" y="74" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">PARENT...</text></switch></g><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 108px; height: 1px; padding-top: 140px; margin-left: 941px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div><b>EXTENSIONS</b></div><div align="justify"><b>CHILD PROCESS</b></div></div></div></div></foreignObject><text x="995" y="144" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">EXTENSIONS...</text></switch></g><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 1px; height: 1px; padding-top: 130px; margin-left: 95px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: nowrap;"><div><b>DOM Worker</b></div><div><b> Thread</b></div></div></div></div></foreignObject><text x="95" y="134" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">DOM Worker...</text></switch></g><g transform="translate(-0.5 -0.5)"><switch><foreignObject style="overflow: visible; text-align: left;" pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe center; width: 88px; height: 1px; padding-top: 130px; margin-left: 161px;"><div style="box-sizing: border-box; font-size: 0px; text-align: center;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: none; white-space: normal; overflow-wrap: normal;"><div><b>Main</b></div><div><b> Thread</b></div></div></div></div></foreignObject><text x="205" y="134" fill="#000000" font-family="Helvetica" font-size="12px" text-anchor="middle">Main...</text></switch></g></g><switch><g requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"/><a transform="translate(0,-5)" xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems" target="_blank"><text text-anchor="middle" font-size="10px" x="50%" y="100%">Viewer does not support full SVG 1.1</text></a></switch></svg>