DevTools: [Android] implement RenderWidgetHostViewAndroid::CopyFromCompositingSurface

content/browser/android/content_view_core_impl.h

 // Copyright 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_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <vector>
 
 #include "base/android/jni_android.h"
@@ skipping 279 matching lines @@
   gfx::Size GetPhysicalBackingSize() const;
   gfx::Size GetViewportSizeDip() const;
   gfx::Size GetViewportSizeOffsetDip() const;
   float GetOverdrawBottomHeightDip() const;
 
   void AttachLayer(scoped_refptr<cc::Layer> layer);
   void RemoveLayer(scoped_refptr<cc::Layer> layer);
   void SetNeedsBeginFrame(bool enabled);
   void SetNeedsAnimate();
 
+  // Captures pixels and compresses them using given |format|,
+  // |quality| and |scale|. |format| should be one of of "jpeg", "png" and
+  // "webp". |scale| is from range (0, 1].
+  bool GrabSnapshot(const std::string& format,

[Sami, 2013/08/05 16:56:15]

Nit: call this CaptureScreenshot for consistency?

+                    int quality,
+                    double scale,
+                    std::vector<uint8>* data);
+
  private:
   class ContentViewUserData;
 
   friend class ContentViewUserData;
   virtual ~ContentViewCoreImpl();
 
   // NotificationObserver implementation.
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
@@ skipping 54 matching lines @@
   ui::WindowAndroid* window_android_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_