Move a bunch of code in content\renderer to the content namespace.

content/renderer/media/mock_media_stream_dispatcher.cc

Index: content/renderer/media/mock_media_stream_dispatcher.cc
===================================================================
--- content/renderer/media/mock_media_stream_dispatcher.cc	(revision 163045)
+++ content/renderer/media/mock_media_stream_dispatcher.cc	(working copy)
@@ -7,6 +7,8 @@
 #include "base/stringprintf.h"
 #include "content/public/common/media_stream_request.h"
 
+namespace content {
+
 MockMediaStreamDispatcher::MockMediaStreamDispatcher()
     : MediaStreamDispatcher(NULL),
       request_id_(-1),
@@ -26,7 +28,7 @@
   audio_array_.clear();
   video_array_.clear();
 
-  if (content::IsAudioMediaType(components.audio_type)) {
+  if (IsAudioMediaType(components.audio_type)) {
     media_stream::StreamDeviceInfo audio;
     audio.device_id = "audio_device_id";
     audio.name = "microphone";
@@ -34,7 +36,7 @@
     audio.session_id = request_id;
     audio_array_.push_back(audio);
   }
-  if (content::IsVideoMediaType(components.video_type)) {
+  if (IsVideoMediaType(components.video_type)) {
     media_stream::StreamDeviceInfo video;
     video.device_id = "video_device_id";
     video.name = "usb video camera";
@@ -61,3 +63,5 @@
                                                 int index) {
   return -1;
 }
+
+}  // namespace content