Implement Mac Pop-up Dictionary for OOPIF.

content/browser/renderer_host/render_widget_host_view_mac.h

Index: content/browser/renderer_host/render_widget_host_view_mac.h
diff --git a/content/browser/renderer_host/render_widget_host_view_mac.h b/content/browser/renderer_host/render_widget_host_view_mac.h
index c767a19fda759d4a045c83406720157f8b0161a8..f277fbb5005fb3894045345c1a757f21f770704b 100644
--- a/content/browser/renderer_host/render_widget_host_view_mac.h
+++ b/content/browser/renderer_host/render_widget_host_view_mac.h
@@ -40,6 +40,7 @@
 #include "ui/display/display_observer.h"
 
 namespace content {
+class RenderWidgetHost;
 class RenderWidgetHostImpl;
 class RenderWidgetHostViewMac;
 class RenderWidgetHostViewMacEditCommandHelper;
@@ -474,6 +475,12 @@ class CONTENT_EXPORT RenderWidgetHostViewMac
   // |TextInputState.type| which is not ui::TEXT_INPUT_TYPE_NONE.
   RenderWidgetHostImpl* GetActiveWidget();
 
+  // Returns the RenderWidgetHost returned form hit testing at the given point

[Charlie Reis, 2016/08/31 22:50:03]

s/form/from/?

[EhsanK, 2016/09/01 21:58:36]

Done.

+  // of the |root_view|. This is used for TextInputClientMac communication with
+  // the right RenderWidgetHost.
+  RenderWidgetHost* GetRenderWidgetHostAtPoint(const gfx::Point& point,
+                                               gfx::Point* transformed_point);
+
  private:
   friend class RenderWidgetHostViewMacTest;