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

content/renderer/render_frame_proxy.cc

 // 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 "content/renderer/render_frame_proxy.h"
 
 #include <stdint.h>
 #include <map>
 #include <utility>
 
@@ skipping 431 matching lines @@
 }
 
 void RenderFrameProxy::forwardInputEvent(const blink::WebInputEvent* event) {
   Send(new FrameHostMsg_ForwardInputEvent(routing_id_, event));
 }
 
 void RenderFrameProxy::frameRectsChanged(const blink::WebRect& frame_rect) {
   Send(new FrameHostMsg_FrameRectChanged(routing_id_, frame_rect));
 }
 
+void RenderFrameProxy::visibilityChanged(bool visible) {
+  Send(new FrameHostMsg_VisibilityChanged(routing_id_, visible));
+}
+
 void RenderFrameProxy::didChangeOpener(blink::WebFrame* opener) {
   // A proxy shouldn't normally be disowning its opener.  It is possible to get
   // here when a proxy that is being detached clears its opener, in which case
   // there is no need to notify the browser process.
   if (!opener)
     return;
 
   // Only a LocalFrame (i.e., the caller of window.open) should be able to
   // update another frame's opener.
   DCHECK(opener->isWebLocalFrame());
 
   int opener_routing_id =
       RenderFrameImpl::FromWebFrame(opener->toWebLocalFrame())->GetRoutingID();
   Send(new FrameHostMsg_DidChangeOpener(routing_id_, opener_routing_id));
 }
 
 void RenderFrameProxy::advanceFocus(blink::WebFocusType type,
                                     blink::WebLocalFrame* source) {
   int source_routing_id = RenderFrameImpl::FromWebFrame(source)->GetRoutingID();
   Send(new FrameHostMsg_AdvanceFocus(routing_id_, type, source_routing_id));
 }
 
 void RenderFrameProxy::frameFocused() {
   Send(new FrameHostMsg_FrameFocused(routing_id_));
 }
 
 }  // namespace