Fire CanPlayThrough immediately for local and streaming media files

media/base/pipeline_impl.cc

Index: media/base/pipeline_impl.cc
diff --git a/media/base/pipeline_impl.cc b/media/base/pipeline_impl.cc
index 386b064a96221aa8d344c5ad5e9dd74a7d9d92d1..c5d4082b8bee1aed9b810019497ca5a1013cc543 100644
--- a/media/base/pipeline_impl.cc
+++ b/media/base/pipeline_impl.cc
@@ -309,7 +309,7 @@ void PipelineImpl::GetNaturalVideoSize(gfx::Size* out_size) const {
 
 bool PipelineImpl::IsStreaming() const {
   base::AutoLock auto_lock(lock_);
-  return streaming_;
+  return streaming_ || media_stream_;
 }
 
 bool PipelineImpl::IsLoaded() const {
@@ -358,6 +358,7 @@ void PipelineImpl::ResetState() {
   buffered_time_    = kZero;
   buffered_bytes_   = 0;
   streaming_        = false;
+  media_stream_     = false;
   loaded_           = false;
   total_bytes_      = 0;
   natural_size_.SetSize(0, 0);
@@ -547,6 +548,12 @@ void PipelineImpl::SetNaturalVideoSize(const gfx::Size& size) {
   natural_size_ = size;
 }
 
+void PipelineImpl::SetMediaStream(bool is_media_stream) {
+  base::AutoLock auto_lock(lock_);
+  media_stream_ = is_media_stream;
+  download_rate_monitor_.set_media_stream(media_stream_);
+}
+
 void PipelineImpl::SetStreaming(bool streaming) {
   DCHECK(IsRunning());
   media_log_->AddEvent(
@@ -555,6 +562,7 @@ void PipelineImpl::SetStreaming(bool streaming) {
 
   base::AutoLock auto_lock(lock_);
   streaming_ = streaming;
+  download_rate_monitor_.set_streaming(streaming_);
 }
 
 void PipelineImpl::NotifyEnded() {