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

content/public/common/media_stream_request.cc

Index: content/public/common/media_stream_request.cc
diff --git a/content/public/common/media_stream_request.cc b/content/public/common/media_stream_request.cc
index b338b759433ac11dd84f51559a822e4e67631b2c..030779c0eb2fdacf994ad0ebf2a4e6659c808da7 100644
--- a/content/public/common/media_stream_request.cc
+++ b/content/public/common/media_stream_request.cc
@@ -87,6 +87,7 @@ MediaStreamRequest::MediaStreamRequest(
     int render_process_id,
     int render_frame_id,
     int page_request_id,
+    const std::string& tab_capture_device_id,
     const GURL& security_origin,
     bool user_gesture,
     MediaStreamRequestType request_type,
@@ -97,13 +98,15 @@ MediaStreamRequest::MediaStreamRequest(
     : render_process_id(render_process_id),
       render_frame_id(render_frame_id),
       page_request_id(page_request_id),
+      tab_capture_device_id(tab_capture_device_id),
       security_origin(security_origin),
       user_gesture(user_gesture),
       request_type(request_type),
       requested_audio_device_id(requested_audio_device_id),
       requested_video_device_id(requested_video_device_id),
       audio_type(audio_type),
-      video_type(video_type) {
+      video_type(video_type),
+      all_ancestors_have_same_origin(false) {
 }
 
 MediaStreamRequest::~MediaStreamRequest() {}