Formalize a RenderFrameHost::AddMessageToConsole() API.

content/renderer/devtools/devtools_agent.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_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 #define CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_
 
 #include <string>
 
 #include "content/common/content_export.h"
@@ skipping 26 matching lines @@
       IPC::Sender* sender,
       int routing_id,
       int call_id,
       const std::string& message,
       const std::string& post_state);
 
   blink::WebDevToolsAgent* GetWebAgent();
 
   bool IsAttached();
 
+  void AddMessageToConsole(ConsoleMessageLevel level,
+                           const std::string& message);
+
  private:
   friend class DevToolsAgentTest;
 
   // RenderFrameObserver implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
   void WidgetWillClose() override;
 
   // WebDevToolsAgentClient implementation.
   void sendProtocolMessage(int call_id,
                            const blink::WebString& response,
                            const blink::WebString& state) override;
   blink::WebDevToolsAgentClient::WebKitClientMessageLoop*
       createClientMessageLoop() override;
   void willEnterDebugLoop() override;
   void didExitDebugLoop() override;
 
   void enableTracing(const blink::WebString& category_filter) override;
   void disableTracing() override;
 
   void OnAttach(const std::string& host_id);
   void OnReattach(const std::string& host_id,
                   const std::string& agent_state);
   void OnDetach();
   void OnDispatchOnInspectorBackend(const std::string& message);
   void OnInspectElement(const std::string& host_id, int x, int y);
-  void OnAddMessageToConsole(ConsoleMessageLevel level,
-                             const std::string& message);
   void ContinueProgram();
   void OnSetupDevToolsClient();
 
   bool is_attached_;
   bool is_devtools_client_;
   bool paused_in_mouse_move_;
   bool paused_;
   RenderFrameImpl* frame_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgent);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_