[DevTools] Introduced WebDeviceEmulationParams.

public/web/WebDevToolsAgentClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef WebDevToolsAgentClient_h
 #define WebDevToolsAgentClient_h
 
 #include "../platform/WebCString.h"
 #include "../platform/WebCommon.h"
 
 namespace blink {
 class WebString;
+struct WebDeviceEmulationParams;
 struct WebDevToolsMessageData;
 struct WebRect;
 struct WebSize;
 
 class WebDevToolsAgentClient {
 public:
     virtual void sendMessageToInspectorFrontend(const WebString&) { }
     virtual void sendDebuggerOutput(const WebString&) { }
 
     // Returns the identifier of the entity hosting this agent.
@@ skipping 43 matching lines @@
     // Called to emulate device dimensions, scale factor and input. Window should
     // occupy the whole device screen, while the view should be located at |viewRect|.
     // x-coordinate of |screenRect| defines the left and right gutters' width,
     // y-coordinate defines the top and bottom gutters' height.
     // With |fitToView| set, contents should be scaled down to fit into embedder window.
     // All sizes are measured in device independent pixels.
     virtual void enableDeviceEmulation(
         const WebRect& screenRect, const WebRect& viewRect,
         float deviceScaleFactor, bool fitToView) { }
 
+    // Enables device emulation as specified in params.
+    virtual void enableDeviceEmulation(const WebDeviceEmulationParams& params) { }
+
     // Cancel emulation started via |enableDeviceEmulation| call.
     virtual void disableDeviceEmulation() { }
 
 protected:
     ~WebDevToolsAgentClient() { }
 };
 
 } // namespace blink
 
 #endif