Add an iframe permissions= attribute for implementing permission delegation

third_party/WebKit/Source/web/FrameLoaderClientImpl.cpp

 /*
  * Copyright (C) 2009, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 918 matching lines @@
             static_cast<WebContentSecurityPolicyType>(type),
             static_cast<WebContentSecurityPolicySource>(source));
     }
 }
 
 void FrameLoaderClientImpl::didChangeFrameOwnerProperties(HTMLFrameElementBase* frameElement)
 {
     if (!m_webFrame->client())
         return;
 
-    m_webFrame->client()->didChangeFrameOwnerProperties(WebFrame::fromFrame(frameElement->contentFrame()), WebFrameOwnerProperties(frameElement->scrollingMode(), frameElement->marginWidth(), frameElement->marginHeight(), frameElement->allowFullscreen()));
+    m_webFrame->client()->didChangeFrameOwnerProperties(WebFrame::fromFrame(frameElement->contentFrame()), WebFrameOwnerProperties(frameElement->scrollingMode(), frameElement->marginWidth(), frameElement->marginHeight(), frameElement->allowFullscreen(), *frameElement->delegatedPermissions()));

[tkent, 2016/06/23 04:57:28]

Can frameElement->delegatedPermissions() be nullptr?

[raymes, 2016/06/27 08:09:50]

I think so now that I look at it closely. I've added a check here.

 }
 
 void FrameLoaderClientImpl::dispatchWillOpenWebSocket(WebSocketHandle* handle)
 {
     m_webFrame->client()->willOpenWebSocket(handle);
 }
 
 void FrameLoaderClientImpl::dispatchWillStartUsingPeerConnectionHandler(WebRTCPeerConnectionHandler* handler)
 {
     m_webFrame->client()->willStartUsingPeerConnectionHandler(handler);
@@ skipping 79 matching lines @@
 }
 
 WebEffectiveConnectionType FrameLoaderClientImpl::getEffectiveConnectionType()
 {
     if (m_webFrame->client())
         return m_webFrame->client()->getEffectiveConnectionType();
     return WebEffectiveConnectionType::TypeUnknown;
 }
 
 } // namespace blink