Changed VideoCaptureController to use correct session id when stopping the capture device.

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 c185dbec7618a8ed4cac940e601cdbc80e55cac7..dc1609b28af256691b7f906481d08f040767a1d7 100644
--- a/content/browser/renderer_host/media/video_capture_controller.cc
+++ b/content/browser/renderer_host/media/video_capture_controller.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -190,12 +190,13 @@ void VideoCaptureController::StopCapture(
     client->event_handler->OnReadyToDelete(client->controller_id);
   }
 
+  int session_id = client->parameters.session_id;
   delete client;
   controller_clients_.remove(client);
 
   // No more clients. Stop device.
   if (controller_clients_.empty()) {
-    video_capture_manager_->Stop(current_params_.session_id,
+    video_capture_manager_->Stop(session_id,
         base::Bind(&VideoCaptureController::OnDeviceStopped, this));
     frame_info_available_ = false;
     state_ = video_capture::kStopping;