Fire CanPlayThrough immediately for local and streaming media files

webkit/media/buffered_data_source.cc

Index: webkit/media/buffered_data_source.cc
diff --git a/webkit/media/buffered_data_source.cc b/webkit/media/buffered_data_source.cc
index 2d7b8c9cfde9a7ce3d475a6a8b0500a6a32ea88b..92680fa2dc0b62a76dfad09d022948052f14da96 100644
--- a/webkit/media/buffered_data_source.cc
+++ b/webkit/media/buffered_data_source.cc
@@ -45,7 +45,7 @@ BufferedDataSource::BufferedDataSource(
     media::MediaLog* media_log)
     : total_bytes_(kPositionNotSpecified),
       buffered_bytes_(0),
-      loaded_(false),
+      local_source_(false),
       streaming_(false),
       frame_(frame),
       loader_(NULL),
@@ -105,6 +105,7 @@ void BufferedDataSource::Initialize(const std::string& url,
     callback.Run(media::DATASOURCE_ERROR_URL_NOT_SUPPORTED);
     return;
   }
+  local_source_ = !url_.SchemeIs(kHttpScheme) && !url_.SchemeIs(kHttpsScheme);
 
   DCHECK(!callback.is_null());
   {
@@ -156,6 +157,10 @@ void BufferedDataSource::SetBitrate(int bitrate) {
       &BufferedDataSource::SetBitrateTask, this, bitrate));
 }
 
+bool BufferedDataSource::IsLocalSource() {
+  return local_source_;
+}
+
 /////////////////////////////////////////////////////////////////////////////
 // media::DataSource implementation.
 void BufferedDataSource::Read(
@@ -431,7 +436,6 @@ void BufferedDataSource::HttpInitialStartCallback(int error) {
     // TODO(hclam): Needs more thinking about supporting servers without range
     // request or their partial response is not complete.
     total_bytes_ = instance_size;
-    loaded_ = false;
     streaming_ = (instance_size == kPositionNotSpecified) ||
         !loader_->range_supported();
   } else {
@@ -501,7 +505,6 @@ void BufferedDataSource::NonHttpInitialStartCallback(int error) {
   if (success) {
     total_bytes_ = instance_size;
     buffered_bytes_ = total_bytes_;
-    loaded_ = true;
   } else {
     loader_->Stop();
   }
@@ -616,7 +619,7 @@ void BufferedDataSource::NetworkEventCallback() {
 
   // In case of non-HTTP request we don't need to report network events,
   // so return immediately.
-  if (loaded_)
+  if (local_source_)
     return;
 
   bool is_downloading_data = loader_->is_downloading_data();
@@ -657,8 +660,6 @@ void BufferedDataSource::UpdateHostState_Locked() {
   if (!filter_host)
     return;
 
-  filter_host->SetLoaded(loaded_);
-
   if (streaming_)
     filter_host->SetStreaming(true);