[DevTools] Handle emulation in embedder, call into web 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 "base/atomicops.h"
 #include "base/basictypes.h"
 #include "base/time/time.h"
 #include "content/public/common/console_message_level.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "third_party/WebKit/public/web/WebDevToolsAgentClient.h"
+#include "third_party/WebKit/public/web/WebDeviceEmulationParams.h"
 
 namespace blink {
 class WebDevToolsAgent;
 }
 
 namespace content {
 
 class RenderViewImpl;
 
 // DevToolsAgent belongs to the inspectable RenderView and provides Glue's
@@ skipping 53 matching lines @@
   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();
+  void OnEnableDeviceEmulation(const blink::WebDeviceEmulationParams& params);
+  void OnDisableDeviceEmulation();
 
   RenderViewImpl* GetRenderViewImpl();
 
   static void TraceEventCallbackWrapper(
       base::TimeTicks timestamp,
       char phase,
       const unsigned char* category_group_enabled,
       const char* name,
       unsigned long long id,
       int num_args,
       const char* const arg_names[],
       const unsigned char arg_types[],
       const unsigned long long arg_values[],
       unsigned char flags);
 
   bool is_attached_;
   bool is_devtools_client_;
   bool paused_in_mouse_move_;
   RenderFrame* main_render_frame_;
 
   static base::subtle::AtomicWord /* TraceEventCallback */ event_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsAgent);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_DEVTOOLS_DEVTOOLS_AGENT_H_