Implementation of device metrics emulation in render view.

content/renderer/render_view_impl.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_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 441 matching lines @@
       const WebKit::WebConsoleMessage& message,
       const WebKit::WebString& source_name,
       unsigned source_line,
       const WebKit::WebString& stack_trace);
   virtual void printPage(WebKit::WebFrame* frame);
   virtual WebKit::WebNotificationPresenter* notificationPresenter();
   virtual bool enumerateChosenDirectory(
       const WebKit::WebString& path,
       WebKit::WebFileChooserCompletion* chooser_completion);
   virtual void initializeHelperPluginWebFrame(WebKit::WebHelperPlugin*);
+  virtual void emulateDevice(
+      bool enabled, const WebKit::WebSize& device_size,
+      const WebKit::WebRect& view_rect, float device_scale_factor,
+      bool fit_to_view);
   virtual void didStartLoading();
   virtual void didStopLoading();
   virtual void didChangeLoadProgress(WebKit::WebFrame* frame,
                                      double load_progress);
   virtual void didCancelCompositionOnSelectionChange();
   virtual void didChangeSelection(bool is_selection_empty);
   virtual void didExecuteCommand(const WebKit::WebString& command_name);
   virtual bool handleCurrentKeyboardEvent();
   virtual WebKit::WebColorChooser* createColorChooser(
       WebKit::WebColorChooserClient*, const WebKit::WebColor& initial_color);
@@ skipping 291 matching lines @@
   virtual bool ForceCompositingModeEnabled() OVERRIDE;
   virtual void OnImeSetComposition(
       const string16& text,
       const std::vector<WebKit::WebCompositionUnderline>& underlines,
       int selection_start,
       int selection_end) OVERRIDE;
   virtual void OnImeConfirmComposition(const string16& text,
                                        const ui::Range& replacement_range,
                                        bool keep_selection) OVERRIDE;
   virtual void SetDeviceScaleFactor(float device_scale_factor) OVERRIDE;
+  virtual void SetDeviceEmulationScale(float scale) OVERRIDE;
   virtual ui::TextInputType GetTextInputType() OVERRIDE;
   virtual void GetSelectionBounds(gfx::Rect* start, gfx::Rect* end) OVERRIDE;
 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(USE_AURA)
   virtual void GetCompositionCharacterBounds(
       std::vector<gfx::Rect>* character_bounds) OVERRIDE;
   virtual void GetCompositionRange(ui::Range* range) OVERRIDE;
 #endif
   virtual bool CanComposeInline() OVERRIDE;
   virtual void DidCommitCompositorFrame() OVERRIDE;
   virtual void InstrumentWillBeginFrame() OVERRIDE;
@@ skipping 770 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_