Add a flag in StopCapture to allow event handler to choose event notification.

content/renderer/pepper_plugin_delegate_impl.cc

Index: content/renderer/pepper_plugin_delegate_impl.cc
===================================================================
--- content/renderer/pepper_plugin_delegate_impl.cc	(revision 102594)
+++ content/renderer/pepper_plugin_delegate_impl.cc	(working copy)
@@ -438,9 +438,10 @@
     video_capture_->StartCapture(handler_proxy_.get(), capability);
   }
 
-  virtual void StopCapture(EventHandler* handler) OVERRIDE {
+  virtual void StopCapture(EventHandler* handler,
+                           bool need_notification) OVERRIDE {
     DCHECK(handler == handler_proxy_->proxied());
-    video_capture_->StopCapture(handler_proxy_.get());
+    video_capture_->StopCapture(handler_proxy_.get(), need_notification);
   }
 
   virtual void FeedBuffer(scoped_refptr<VideoFrameBuffer> buffer) OVERRIDE {