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

chrome/browser/media/desktop_media_list_observer.h

Index: chrome/browser/media/desktop_media_list_observer.h
diff --git a/chrome/browser/media/desktop_media_list_observer.h b/chrome/browser/media/desktop_media_list_observer.h
deleted file mode 100644
index 92b809d2f7dd2766523f71c1f3071b699170d624..0000000000000000000000000000000000000000
--- a/chrome/browser/media/desktop_media_list_observer.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// 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_MEDIA_LIST_OBSERVER_H_
-#define CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_OBSERVER_H_
-
-class DesktopMediaList;
-
-// Interface implemented by the desktop media picker dialog to receive
-// notifications about changes in DesktopMediaList.
-class DesktopMediaListObserver {
- public:
-  virtual void OnSourceAdded(DesktopMediaList* list, int index) = 0;
-  virtual void OnSourceRemoved(DesktopMediaList* list, int index) = 0;
-  virtual void OnSourceMoved(DesktopMediaList* list,
-                             int old_index,
-                             int new_index) = 0;
-  virtual void OnSourceNameChanged(DesktopMediaList* list, int index) = 0;
-  virtual void OnSourceThumbnailChanged(DesktopMediaList* list, int index) = 0;
-
- protected:
-  virtual ~DesktopMediaListObserver() {}
-};
-
-#endif  // CHROME_BROWSER_MEDIA_DESKTOP_MEDIA_LIST_OBSERVER_H_