Implement Mac Pop-up Dictionary for OOPIF.

content/browser/renderer_host/render_widget_host_input_event_router.h

Index: content/browser/renderer_host/render_widget_host_input_event_router.h
diff --git a/content/browser/renderer_host/render_widget_host_input_event_router.h b/content/browser/renderer_host/render_widget_host_input_event_router.h
index 83736c4973dbd2b435f5d09a9041ae9db12e900e..85f45e56b55150e288b80177d23b3763cc55a3d5 100644
--- a/content/browser/renderer_host/render_widget_host_input_event_router.h
+++ b/content/browser/renderer_host/render_widget_host_input_event_router.h
@@ -38,6 +38,7 @@ class LatencyInfo;
 
 namespace content {
 
+class RenderWidgetHostImpl;
 class RenderWidgetHostViewBase;
 
 // Class owned by WebContentsImpl for the purpose of directing input events
@@ -79,6 +80,15 @@ class CONTENT_EXPORT RenderWidgetHostInputEventRouter
 
   void OnHittestData(const FrameHostMsg_HittestData_Params& params);
 
+  // Returns the RenderWidgetHostImpl inside the |root_view| at |point| where
+  // |point| is with respect to |root_view|'s coordinates. If a RWHI is found,
+  // the value of |transformed_point| is the coordinate of the point with
+  // respect to the RWHI's coordinates.
+  RenderWidgetHostImpl* GetRenderWidgetHostAtPoint(
+      RenderWidgetHostViewBase* root_view,
+      const gfx::Point& point,
+      gfx::Point* transformed_point);
+
  private:
   struct HittestData {
     bool ignored_for_hittest;