Don't mark a WebMediaPlayer as idle until it has size and first frame.

content/renderer/media/android/webmediaplayer_android.cc

Index: content/renderer/media/android/webmediaplayer_android.cc
diff --git a/content/renderer/media/android/webmediaplayer_android.cc b/content/renderer/media/android/webmediaplayer_android.cc
index 9cce80b899d64d5dc47cd91164e66901efb42c66..eadd264867b38a65a138207994e091fe9c466087 100644
--- a/content/renderer/media/android/webmediaplayer_android.cc
+++ b/content/renderer/media/android/webmediaplayer_android.cc
@@ -968,6 +968,12 @@ void WebMediaPlayerAndroid::OnVideoSizeChanged(int width, int height) {
     video_weblayer_.reset(new cc_blink::WebLayerImpl(
         cc::VideoLayer::Create(this, media::VIDEO_ROTATION_0)));
     client_->setWebLayer(video_weblayer_.get());
+
+    // If we're paused after we receive metadata for the first time, tell the

[wolenetz, 2016/03/15 01:08:24]

For MSE midstream configchange that changes the width or height, would this new
code start a 15-second timer on the delegate that might not get canceled across
the continually, actually still playing, configchange?

[wolenetz, 2016/03/15 01:11:18]

Dale pointed out this block happens only once (if !video_weblayer_).
So no problem here.

+    // delegate we can now be safely suspended due to inactivity if a subsequent
+    // play event does not occur.
+    if (paused() && delegate_)
+      delegate_->DidPause(delegate_id_, false);
   }
 }