Mojo-ify ShellViewHostMsg_LayoutDumpResponse.

content/shell/browser/layout_test/blink_test_controller.h

Index: content/shell/browser/layout_test/blink_test_controller.h
diff --git a/content/shell/browser/layout_test/blink_test_controller.h b/content/shell/browser/layout_test/blink_test_controller.h
index e854c88fb20d881314a242a135dd7e4e91f8c76d..b7b3999dd390011b1f0610932bacd3b4f46aa094 100644
--- a/content/shell/browser/layout_test/blink_test_controller.h
+++ b/content/shell/browser/layout_test/blink_test_controller.h
@@ -159,8 +159,6 @@ class BlinkTestController : public WebContentsObserver,
 
   // WebContentsObserver implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
-  bool OnMessageReceived(const IPC::Message& message,
-                         RenderFrameHost* render_frame_host) override;
   void PluginCrashed(const base::FilePath& plugin_path,
                      base::ProcessId plugin_pid) override;
   void RenderFrameCreated(RenderFrameHost* render_frame_host) override;
@@ -204,7 +202,8 @@ class BlinkTestController : public WebContentsObserver,
   void OnImageDump(const std::string& actual_pixel_hash, const SkBitmap& image);
   void OnTextDump(const std::string& dump);
   void OnInitiateLayoutDump();
-  void OnLayoutDumpResponse(RenderFrameHost* sender, const std::string& dump);
+  void OnDumpFrameLayoutResponse(int frame_tree_node_id,
+                                 const std::string& dump);
   void OnPrintMessageToStderr(const std::string& message);
   void OnPrintMessage(const std::string& message);
   void OnOverridePreferences(const WebPreferences& prefs);