Implement surface-based browser process hit testing for Mac and Aura

content/browser/renderer_host/render_widget_host_delegate.cc

 // 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.
 
 #include "base/basictypes.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 
 namespace content {
 
 bool RenderWidgetHostDelegate::PreHandleKeyboardEvent(
@@ skipping 22 matching lines @@
   return NULL;
 }
 
 #if defined(OS_WIN)
 gfx::NativeViewAccessible
     RenderWidgetHostDelegate::GetParentNativeViewAccessible() {
   return NULL;
 }
 #endif
 
+// If a delegate does not override this, the RenderWidgetHostView will
+// assume it is the sole platform event consumer.
+RenderWidgetHostInputEventRouter*
+RenderWidgetHostDelegate::GetInputEventRouter() {
+  return nullptr;
+}
+
 }  // namespace content