Removing singleton property of MediaStreamManager and creating thread first when needed.

content/browser/renderer_host/media/video_capture_controller.cc

Index: content/browser/renderer_host/media/video_capture_controller.cc
diff --git a/content/browser/renderer_host/media/video_capture_controller.cc b/content/browser/renderer_host/media/video_capture_controller.cc
index e1d5d28014181cebe5d9a0f60cc1e3b3ecc30865..87d29819a717eb4fc6219e742721eb47366277d8 100644
--- a/content/browser/renderer_host/media/video_capture_controller.cc
+++ b/content/browser/renderer_host/media/video_capture_controller.cc
@@ -8,6 +8,7 @@
 #include "content/browser/browser_thread.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/video_capture_manager.h"
+#include "content/browser/resource_context.h"
 #include "media/base/yuv_convert.h"
 
 // The number of TransportDIBs VideoCaptureController allocate.
@@ -16,11 +17,13 @@ static const size_t kNoOfDIBS = 3;
 VideoCaptureController::VideoCaptureController(
     const VideoCaptureControllerID& id,
     base::ProcessHandle render_process,
-    VideoCaptureControllerEventHandler* event_handler)
+    VideoCaptureControllerEventHandler* event_handler,
+    const content::ResourceContext* resource_context)
     : render_handle_(render_process),
       report_ready_to_delete_(false),
       event_handler_(event_handler),
-      id_(id) {
+      id_(id),
+      resource_context_(resource_context) {
   memset(&params_, 0, sizeof(params_));
 }
 
@@ -35,21 +38,19 @@ void VideoCaptureController::StartCapture(
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   params_ = params;
-    media_stream::VideoCaptureManager* manager =
-        media_stream::MediaStreamManager::Get()->video_capture_manager();
   // Order the manager to start the actual capture.
-  manager->Start(params, this);
+  resource_context_->media_stream_manager()->video_capture_manager()->
+      Start(params, this);
 }
 
 void VideoCaptureController::StopCapture(Task* stopped_task) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
-  media_stream::VideoCaptureManager* manager =
-      media_stream::MediaStreamManager::Get()->video_capture_manager();
-  manager->Stop(params_.session_id,
-                NewRunnableMethod(this,
-                                  &VideoCaptureController::OnDeviceStopped,
-                                  stopped_task));
+  resource_context_->media_stream_manager()->video_capture_manager()->
+      Stop(params_.session_id,
+           NewRunnableMethod(this,
+                             &VideoCaptureController::OnDeviceStopped,
+                             stopped_task));
 }
 
 void VideoCaptureController::ReturnBuffer(int buffer_id) {
@@ -157,7 +158,7 @@ void VideoCaptureController::OnIncomingCapturedFrame(const uint8* data,
 
 void VideoCaptureController::OnError() {
   event_handler_->OnError(id_);
-  media_stream::MediaStreamManager::Get()->video_capture_manager()->
+  resource_context_->media_stream_manager()->video_capture_manager()->
       Error(params_.session_id);
 }