Webcam ppapi flash fix.

content/browser/renderer_host/media/video_capture_controller.cc

 // Copyright (c) 2011 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 "content/browser/renderer_host/media/video_capture_controller.h"
 
 #include "base/bind.h"
 #include "base/stl_util.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/browser/renderer_host/media/video_capture_manager.h"
@@ skipping 204 matching lines @@
   if (!client || dib_it == owned_dibs_.end())
     return;
 
   client->buffers.remove(buffer_id);
   // If this client has called StopCapture and doesn't hold any buffer after
   // after this return, ready to delete this client.
   if (client->report_ready_to_delete && client->buffers.empty()) {
     client->event_handler->OnReadyToDelete(client->controller_id);
     delete client;
     controller_clients_.remove(client);
+
+    if (controller_clients_.empty()) {
+       // No more clients. Stop device.
+       video_capture_manager_->Stop(current_params_.session_id,
+          base::Bind(&VideoCaptureController::OnDeviceStopped, this));
+      frame_info_available_ = false;
+      state_ = video_capture::kStopping;
+    }
   }
   {
     base::AutoLock lock(lock_);
     DCHECK_GT(dib_it->second->references, 0)
         << "The buffer is not used by renderer.";
     dib_it->second->references -= 1;
     if (dib_it->second->references > 0)
       return;
   }
 
@@ skipping 279 matching lines @@
 }
 
 void VideoCaptureController::DoDeviceStoppedOnIOThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   device_in_use_ = false;
   if (state_ == video_capture::kStopping) {
     PostStopping();
   }
 }