Cleanup: move WebRTC related files from chrome/browser/media to chrome/browser/media/webrtc/

chrome/browser/media/desktop_streams_registry.h

-// Copyright 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 CHROME_BROWSER_MEDIA_DESKTOP_STREAMS_REGISTRY_H_
-#define CHROME_BROWSER_MEDIA_DESKTOP_STREAMS_REGISTRY_H_
-
-#include <map>
-#include <string>
-
-#include "base/macros.h"
-#include "chrome/browser/media/desktop_media_list.h"
-#include "url/gurl.h"
-
-// DesktopStreamsRegistry is used to store accepted desktop media streams for
-// Desktop Capture API. Single instance of this class is created per browser in
-// MediaCaptureDevicesDispatcher.
-class DesktopStreamsRegistry {
- public:
-  DesktopStreamsRegistry();
-  ~DesktopStreamsRegistry();
-
-  // Adds new stream to the registry. Called by the implementation of
-  // desktopCapture.chooseDesktopMedia() API after user has approved access to
-  // |source| for the |origin|. Returns identifier of the new stream.
-  // |render_frame_id| refers to the RenderFrame requesting the stream.
-  std::string RegisterStream(int render_process_id,
-                             int render_frame_id,
-                             const GURL& origin,
-                             const content::DesktopMediaID& source,
-                             const std::string& extension_name);
-
-  // Validates stream identifier specified in getUserMedia(). Returns null
-  // DesktopMediaID if the specified |id| is invalid, i.e. wasn't generated
-  // using RegisterStream() or if it was generated for a different
-  // RenderFrame/origin. Otherwise returns ID of the source and removes it from
-  // the registry.
-  content::DesktopMediaID RequestMediaForStreamId(const std::string& id,
-                                                  int render_process_id,
-                                                  int render_frame_id,
-                                                  const GURL& origin,
-                                                  std::string* extension_name);
-
- private:
-  // Type used to store list of accepted desktop media streams.
-  struct ApprovedDesktopMediaStream {
-    ApprovedDesktopMediaStream();
-
-    int render_process_id;
-    int render_frame_id;
-    GURL origin;
-    content::DesktopMediaID source;
-    std::string extension_name;
-  };
-  typedef std::map<std::string, ApprovedDesktopMediaStream> StreamsMap;
-
-  // Helper function that removes an expired stream from the registry.
-  void CleanupStream(const std::string& id);
-
-  StreamsMap approved_streams_;
-
-  DISALLOW_COPY_AND_ASSIGN(DesktopStreamsRegistry);
-};
-
-#endif  // CHROME_BROWSER_MEDIA_DESKTOP_STREAMS_REGISTRY_H_