Perform direct routing of mouse events when the pointer is locked.

content/browser/renderer_host/render_widget_host_delegate.h

 // Copyright (c) 2012 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_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 165 matching lines @@
 
   // Notification that the widget has lost capture.
   virtual void LostCapture(RenderWidgetHostImpl* render_widget_host) {}
 
   // Notification that the widget has lost the mouse lock.
   virtual void LostMouseLock(RenderWidgetHostImpl* render_widget_host) {}
 
   // Returns true if |render_widget_host| holds the mouse lock.
   virtual bool HasMouseLock(RenderWidgetHostImpl* render_widget_host);
 
+  // Returns the widget that holds the mouse lock or nullptr if the mouse isn't
+  // locked.
+  virtual RenderWidgetHostImpl* MouseLockWidget();
+
   // Called when the widget has sent a compositor proto.  This is used in Btlimp
   // mode with the RemoteChannel compositor.
   virtual void ForwardCompositorProto(RenderWidgetHostImpl* render_widget_host,
                                       const std::vector<uint8_t>& proto) {}
 
   // Called when the visibility of the RenderFrameProxyHost in outer
   // WebContents changes. This method is only called on an inner WebContents and
   // will eventually notify all the RenderWidgetHostViews belonging to that
   // WebContents.
   virtual void OnRenderFrameProxyVisibilityChanged(bool visible) {}
@@ skipping 48 matching lines @@
   // if the eTLD+1 is not known for |render_widget_host|.
   virtual bool AddDomainInfoToRapporSample(rappor::Sample* sample);
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_