media: Add MediaPermission interface and MediaPermissionDispatcher.

chrome/browser/chrome_content_browser_client.cc

 // 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.
 
 #include "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 1944 matching lines @@
 #if defined(ENABLE_NOTIFICATIONS)
       context = DesktopNotificationServiceFactory::GetForProfile(profile);
 #else
       NOTIMPLEMENTED();
 #endif
       break;
     case content::PERMISSION_GEOLOCATION:
       context = GeolocationPermissionContextFactory::GetForProfile(profile);
       break;
     case content::PERMISSION_PROTECTED_MEDIA:
-      NOTIMPLEMENTED();
+      context = ProtectedMediaIdentifierPermissionContextFactory::GetForProfile(
+          profile);
       break;
     case content::PERMISSION_PUSH_MESSAGING:
       context = gcm::PushMessagingPermissionContextFactory::GetForProfile(
           profile);
       break;
     case content::PERMISSION_NUM:
       NOTREACHED() << "Invalid RequestPermission for " << permission;
       break;
   }
 
@@ skipping 646 matching lines @@
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 }  // namespace chrome