[Cross-Site Isolation] Migrate entire MediaStream verticals to be per-RenderFrame.

content/renderer/media/media_stream_dispatcher.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_MEDIA_MEDIA_STREAM_DISPATCHER_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_H_
 
 #include <list>
 #include <map>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/threading/thread_checker.h"
 #include "content/common/content_export.h"
 #include "content/common/media/media_stream_options.h"
-#include "content/public/renderer/render_view_observer.h"
+#include "content/public/renderer/render_frame_observer.h"
 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
 namespace content {
 
-class RenderViewImpl;
-
 // MediaStreamDispatcher is a delegate for the Media Stream API messages.
 // MediaStreams are used by WebKit to open media devices such as Video Capture
 // and Audio input devices.
 // It's the complement of MediaStreamDispatcherHost (owned by
 // BrowserRenderProcessHost).
 class CONTENT_EXPORT MediaStreamDispatcher
-    : public RenderViewObserver,
+    : public RenderFrameObserver,
       public base::SupportsWeakPtr<MediaStreamDispatcher> {
  public:
-  explicit MediaStreamDispatcher(RenderViewImpl* render_view);
+  explicit MediaStreamDispatcher(RenderFrame* render_frame);
   virtual ~MediaStreamDispatcher();
 
   // Request a new media stream to be created.
   // This can be used either by WebKit or a plugin.
   // Note: The event_handler must be valid for as long as the stream exists.
   virtual void GenerateStream(
       int request_id,
       const base::WeakPtr<MediaStreamDispatcherEventHandler>& event_handler,
       const StreamOptions& components,
       const GURL& security_origin);
@@ skipping 59 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MediaStreamDispatcherTest, TestFailure);
   FRIEND_TEST_ALL_PREFIXES(MediaStreamDispatcherTest, CancelGenerateStream);
   FRIEND_TEST_ALL_PREFIXES(MediaStreamDispatcherTest, CheckDuckingState);
 
   struct Request;
 
   // Private class for keeping track of opened devices and who have
   // opened it.
   struct Stream;
 
-  // RenderViewObserver OVERRIDE.
+  // RenderFrameObserver OVERRIDE.
+  virtual void OnDestruct() OVERRIDE;
   virtual bool Send(IPC::Message* message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // Messages from the browser.
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   void OnStreamGenerated(
       int request_id,
       const std::string& label,
       const StreamDeviceInfoArray& audio_array,
       const StreamDeviceInfoArray& video_array);
   void OnStreamGenerationFailed(
       int request_id,
       content::MediaStreamRequestResult result);
   void OnDeviceStopped(const std::string& label,
                        const StreamDeviceInfo& device_info);
   void OnDevicesEnumerated(
       int request_id,
       const StreamDeviceInfoArray& device_array);
   void OnDeviceOpened(
       int request_id,
       const std::string& label,
       const StreamDeviceInfo& device_info);
   void OnDeviceOpenFailed(int request_id);
 
   // Used for DCHECKs so methods calls won't execute in the wrong thread.
-  scoped_refptr<base::MessageLoopProxy> main_loop_;
+  base::ThreadChecker thread_checker_;
 
   int next_ipc_id_;
   typedef std::map<std::string, Stream> LabelStreamMap;
   LabelStreamMap label_stream_map_;
 
   // List of calls made to the browser process that have not yet completed or
   // been canceled.
   typedef std::list<Request> RequestList;
   RequestList requests_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcher);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_DISPATCHER_H_