Creating PNG images from web content to be used by OverviewMode navigation

athena/content/web_activity.h

 // Copyright 2014 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 ATHENA_CONTENT_PUBLIC_WEB_ACTIVITY_H_
 #define ATHENA_CONTENT_PUBLIC_WEB_ACTIVITY_H_
 
 #include <vector>
 
 #include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_view_model.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "content/public/browser/web_contents_observer.h"
+#include "ui/gfx/image/image.h"
 #include "ui/gfx/image/image_skia.h"
 
 class SkBitmap;
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }
 
 namespace gfx {
@@ skipping 31 matching lines @@
   virtual aura::Window* GetWindow() OVERRIDE;
 
   // ActivityViewModel:
   virtual void Init() OVERRIDE;
   virtual SkColor GetRepresentativeColor() const OVERRIDE;
   virtual base::string16 GetTitle() const OVERRIDE;
   virtual gfx::ImageSkia GetIcon() const OVERRIDE;
   virtual bool UsesFrame() const OVERRIDE;
   virtual views::View* GetContentsView() OVERRIDE;
   virtual views::Widget* CreateWidget() OVERRIDE;
-  virtual gfx::ImageSkia GetOverviewModeImage() OVERRIDE;
+  virtual scoped_ptr<gfx::Image> GetOverviewModeImage() OVERRIDE;
   virtual void PrepareContentsForOverview() OVERRIDE;
   virtual void ResetContentsView() OVERRIDE;
 
   // content::WebContentsObserver:
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
   virtual void TitleWasSet(content::NavigationEntry* entry,
                            bool explicit_set) OVERRIDE;
   virtual void DidUpdateFaviconURL(
@@ skipping 33 matching lines @@
   scoped_ptr<ContentProxy> content_proxy_;
 
   base::WeakPtrFactory<WebActivity> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebActivity);
 };
 
 }  // namespace athena
 
 #endif  // ATHENA_CONTENT_WEB_ACTIVITY_H_