Add UMA reporting for GpuVideoDecoder::Initialize status.

webkit/media/webmediaplayer_impl.cc

Index: webkit/media/webmediaplayer_impl.cc
diff --git a/webkit/media/webmediaplayer_impl.cc b/webkit/media/webmediaplayer_impl.cc
index 588801c471b6b9aaee85eff263a6347216c3f71d..d6c69c77bc097cf2614f81057aed453e37fd4762 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -827,7 +827,7 @@ void WebMediaPlayerImpl::OnPipelineError(PipelineStatus error) {
   DCHECK_EQ(main_loop_, MessageLoop::current());
   switch (error) {
     case media::PIPELINE_OK:
-      LOG(DFATAL) << "PIPELINE_OK isn't an error!";
+      NOTREACHED() << "PIPELINE_OK isn't an error!";
       break;
 
     case media::PIPELINE_ERROR_NETWORK:
@@ -859,6 +859,10 @@ void WebMediaPlayerImpl::OnPipelineError(PipelineStatus error) {
       // Webkit (see http://crbug.com/124486).
       SetNetworkState(WebMediaPlayer::NetworkStateDecodeError);
       break;
+
+    case media::PIPELINE_STATUS_MAX:
+      NOTREACHED() << "PIPELINE_STATUS_MAX isn't a real error!";
+      break;
   }
 
   // Repaint to trigger UI update.