media: Avoid closing connection if we're going to play soon

Bug: 836952
Change-Id: I381042fd107b954b5d47f1dae7e392e5bd3752dc
Reviewed-on: https://chromium-review.googlesource.com/1069804
Commit-Queue: Fredrik Hubinette <hubbe@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#561345}

media/blink/webmediaplayer_impl.cc

@@ -1770,7 +1770,7 @@ void WebMediaPlayerImpl::OnBufferingStateChangeInternal(
 
     // Let the DataSource know we have enough data. It may use this information
     // to release unused network connections.
-    if (data_source_)
+    if (data_source_ && !client_->CouldPlayIfEnoughData())
       data_source_->OnBufferingHaveEnough(false);
 
     // Blink expects a timeChanged() in response to a seek().