Don't auto allow access to media devices unless a the security origin of the requester is the same …

chrome/browser/media/media_stream_devices_controller_browsertest.cc

 // Copyright 2014 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 <string>
 
 #include "base/bind.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
@@ skipping 72 matching lines @@
                                             const std::string& video_id) {
     content::MediaStreamType audio_type =
         audio_id.empty() ? content::MEDIA_NO_SERVICE
                          : content::MEDIA_DEVICE_AUDIO_CAPTURE;
     content::MediaStreamType video_type =
         video_id.empty() ? content::MEDIA_NO_SERVICE
                          : content::MEDIA_DEVICE_VIDEO_CAPTURE;
     return content::MediaStreamRequest(0,
                                        0,
                                        0,
+                                       std::string(),
                                        example_url(),
                                        false,
                                        content::MEDIA_DEVICE_ACCESS,
                                        audio_id,
                                        video_id,
                                        audio_type,
                                        video_type);
   }
 
   // Dummy callback for when we deny the current request directly.
@@ skipping 360 matching lines @@
                 TabSpecificContentSettings::CAMERA_ACCESSED,
             GetContentSettings()->GetMicrophoneCameraState());
 
   // After ending the camera capture, the camera permission is no longer
   // relevant, so it should no be included in the mic/cam state.
   video_stream_ui.reset();
   EXPECT_EQ(TabSpecificContentSettings::MICROPHONE_ACCESSED |
                 TabSpecificContentSettings::MICROPHONE_BLOCKED,
             GetContentSettings()->GetMicrophoneCameraState());
 }