Fire CanPlayThrough immediately for local and streaming media files

webkit/media/simple_data_source.cc

Index: webkit/media/simple_data_source.cc
diff --git a/webkit/media/simple_data_source.cc b/webkit/media/simple_data_source.cc
index 16d0a9f6c8d011cfd80d53cdb67b65b33633a5cf..3f38f9b7b424f66d78a3d47d4c950785487f0c82 100644
--- a/webkit/media/simple_data_source.cc
+++ b/webkit/media/simple_data_source.cc
@@ -49,6 +49,7 @@ SimpleDataSource::SimpleDataSource(
       frame_(frame),
       size_(-1),
       single_origin_(true),
+      local_source_(false),
       state_(UNINITIALIZED),
       keep_test_loader_(false) {
   DCHECK(render_loop);
@@ -100,6 +101,9 @@ void SimpleDataSource::Initialize(
       return;
     }
 
+    // If scheme is file or data, it is a local source.
+    local_source_ = url_.SchemeIsFile() || url_.SchemeIs(kDataScheme);
+
     // Post a task to the render thread to start loading the resource.
     render_loop_->PostTask(FROM_HERE,
         base::Bind(&SimpleDataSource::StartTask, this));
@@ -146,6 +150,10 @@ void SimpleDataSource::SetPreload(media::Preload preload) {
 void SimpleDataSource::SetBitrate(int bitrate) {
 }
 
+bool SimpleDataSource::IsLocalSource() {
+  return local_source_;
+}
+
 void SimpleDataSource::SetURLLoaderForTest(WebKit::WebURLLoader* mock_loader) {
   url_loader_.reset(mock_loader);
   keep_test_loader_ = true;
@@ -352,8 +360,6 @@ void SimpleDataSource::UpdateHostState() {
   if (host()) {
     host()->SetTotalBytes(size_);
     host()->SetBufferedBytes(size_);
-    // If scheme is file or data, say we are loaded.
-    host()->SetLoaded(url_.SchemeIsFile() || url_.SchemeIs(kDataScheme));
   }
 }