Migrate Telemetry from beginWindowSnapshotPNG to Page.captureScreenshot

content/browser/devtools/renderer_overrides_handler.h

 // Copyright (c) 2013 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_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_
 #define CONTENT_BROWSER_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 57 matching lines @@
       scoped_refptr<DevToolsProtocol::Command> command);
   scoped_refptr<DevToolsProtocol::Response> PageStartScreencast(
       scoped_refptr<DevToolsProtocol::Command> command);
   scoped_refptr<DevToolsProtocol::Response> PageStopScreencast(
       scoped_refptr<DevToolsProtocol::Command> command);
   scoped_refptr<DevToolsProtocol::Response> PageQueryUsageAndQuota(
       scoped_refptr<DevToolsProtocol::Command>);
 
   void ScreenshotCaptured(
       scoped_refptr<DevToolsProtocol::Command> command,
+      const unsigned char* png_data,
+      size_t png_size);
+
+  void ScreencastFrameCaptured(

[Ken Russell (switch to Gerrit), 2014/03/11 18:22:29]

What is the difference between ScreenshotCaptured and ScreencastFrameCaptured?
It seems to me that only one of these should exist.

[Vladislav Kaznacheev, 2014/03/12 09:24:24]

These are two different things.
Screencast is a special mode when DevTools captures compositor frames as they
are generated and sends them to DevTools frontend. In this case there is no need
to force synchronization with the renderer.

On 2014/03/11 18:22:29, Ken Russell wrote:

       const std::string& format,
       int quality,
       const cc::CompositorFrameMetadata& metadata,
       bool success,
       const SkBitmap& bitmap);
 
   void PageQueryUsageAndQuotaCompleted(
      scoped_refptr<DevToolsProtocol::Command>,
      scoped_ptr<base::DictionaryValue> response_data);
 
@@ skipping 10 matching lines @@
   cc::CompositorFrameMetadata last_compositor_frame_metadata_;
   base::TimeTicks last_frame_time_;
   int capture_retry_count_;
   base::WeakPtrFactory<RendererOverridesHandler> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RendererOverridesHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_RENDERER_OVERRIDES_HANDLER_H_