Handle pointer-events: none in browser process hittesting.

content/renderer/render_frame_proxy.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 #define CONTENT_RENDERER_RENDER_FRAME_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "content/common/content_export.h"
@@ skipping 86 matching lines @@
 
   // Returns the RenderFrameProxy given a WebFrame.
   static RenderFrameProxy* FromWebFrame(blink::WebFrame* web_frame);
 
   ~RenderFrameProxy() override;
 
   // IPC::Sender
   bool Send(IPC::Message* msg) override;
 
   // Out-of-process child frames receive a signal from RenderWidgetCompositor
+  // when a compositor frame will begin.
+  void WillBeginCompositorFrame();
+
+  // Out-of-process child frames receive a signal from RenderWidgetCompositor
   // when a compositor frame has committed.
   void DidCommitCompositorFrame();
 
   // Pass replicated information, such as security origin, to this
   // RenderFrameProxy's WebRemoteFrame.
   void SetReplicatedState(const FrameReplicationState& state);
 
   // Navigating a top-level frame cross-process does not swap the WebLocalFrame
   // for a WebRemoteFrame in the frame tree. In this case, this WebRemoteFrame
   // is not attached to the frame tree and there is no blink::Frame associated
@@ skipping 67 matching lines @@
 
   RenderViewImpl* render_view_;
   RenderWidget* render_widget_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameProxy);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_PROXY_H_