Notifying the Out of Process Renderer about Visibility Change of a Remote Frame

third_party/WebKit/Source/core/frame/RemoteFrame.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/frame/RemoteFrame.h"
 
 #include "bindings/core/v8/WindowProxy.h"
 #include "bindings/core/v8/WindowProxyManager.h"
 #include "core/dom/RemoteSecurityContext.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 127 matching lines @@
 void RemoteFrame::forwardInputEvent(Event* event)
 {
     remoteFrameClient()->forwardInputEvent(event);
 }
 
 void RemoteFrame::frameRectsChanged(const IntRect& frameRect)
 {
     remoteFrameClient()->frameRectsChanged(frameRect);
 }
 
+void RemoteFrame::visibilityChanged(bool visible)
+{
+    if (remoteFrameClient())
+        remoteFrameClient()->visibilityChanged(visible);
+}
+
 void RemoteFrame::setView(PassRefPtrWillBeRawPtr<RemoteFrameView> view)
 {
     // Oilpan: as RemoteFrameView performs no finalization actions,
     // no explicit dispose() of it needed here. (cf. FrameView::dispose().)
     m_view = view;
 
     // ... the RemoteDOMWindow will need to be informed of detachment,
     // as otherwise it will keep a strong reference back to this RemoteFrame.
     // That combined with wrappers (owned and kept alive by RemoteFrame) keeping
     // persistent strong references to RemoteDOMWindow will prevent the GCing
@@ skipping 33 matching lines @@
     ASSERT(owner());
     toHTMLFrameOwnerElement(owner())->setNeedsCompositingUpdate();
 }
 
 void RemoteFrame::advanceFocus(WebFocusType type, LocalFrame* source)
 {
     remoteFrameClient()->advanceFocus(type, source);
 }
 
 } // namespace blink