Add WebUI::GetDeviceScale

content/browser/webui/web_ui_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_BROWSER_WEBUI_WEB_UI_IMPL_H_
 #define CONTENT_BROWSER_WEBUI_WEB_UI_IMPL_H_
 #pragma once
 
 #include <map>
 
@@ skipping 15 matching lines @@
 
   // Called by WebContentsImpl when the RenderView is first created. This is
   // *not* called for every page load because in some cases
   // RenderViewHostManager will reuse RenderView instances.
   void RenderViewCreated(content::RenderViewHost* render_view_host);
 
   // WebUI implementation:
   virtual content::WebContents* GetWebContents() const OVERRIDE;
   virtual content::WebUIController* GetController() const OVERRIDE;
   virtual void SetController(content::WebUIController* controller) OVERRIDE;
+  virtual float GetDeviceScale() const OVERRIDE;
   virtual bool ShouldHideFavicon() const OVERRIDE;
   virtual void HideFavicon() OVERRIDE;
   virtual bool ShouldFocusLocationBarByDefault() const OVERRIDE;
   virtual void FocusLocationBarByDefault() OVERRIDE;
   virtual bool ShouldHideURL() const OVERRIDE;
   virtual void HideURL() OVERRIDE;
   virtual const string16& GetOverriddenTitle() const OVERRIDE;
   virtual void OverrideTitle(const string16& title) OVERRIDE;
   virtual content::PageTransition GetLinkTransitionType() const OVERRIDE;
   virtual void SetLinkTransitionType(content::PageTransition type) OVERRIDE;
@@ skipping 64 matching lines @@
   // The path for the iframe this WebUI is embedded in (empty if not in an
   // iframe).
   std::string frame_xpath_;
 
   scoped_ptr<content::WebUIController> controller_;
 
   DISALLOW_COPY_AND_ASSIGN(WebUIImpl);
 };
 
 #endif  // CONTENT_BROWSER_WEBUI_WEB_UI_IMPL_H_