Bugfix for cross-origin check

media/blink/multibuffer_data_source.cc

Index: media/blink/multibuffer_data_source.cc
diff --git a/media/blink/multibuffer_data_source.cc b/media/blink/multibuffer_data_source.cc
index f1bdc9ffb6ac367b3b27150c0de5f1504f5be41d..f0e38a0a85e6593b3ea349f5eef53726f404791a 100644
--- a/media/blink/multibuffer_data_source.cc
+++ b/media/blink/multibuffer_data_source.cc
@@ -113,6 +113,7 @@ MultibufferDataSource::MultibufferDataSource(
       total_bytes_(kPositionNotSpecified),
       streaming_(false),
       loading_(false),
+      failed_(false),
       render_task_runner_(task_runner),
       url_index_(url_index),
       frame_(frame),
@@ -185,6 +186,7 @@ void MultibufferDataSource::OnRedirect(
     const scoped_refptr<UrlData>& destination) {
   if (!destination) {
     // A failure occured.
+    failed_ = true;
     if (!init_cb_.is_null()) {
       render_task_runner_->PostTask(
           FROM_HERE,
@@ -256,8 +258,7 @@ bool MultibufferDataSource::DidPassCORSAccessCheck() const {
   // If init_cb is set, we initialization is not finished yet.
   if (!init_cb_.is_null())
     return false;
-  // Loader will be false if there was a failure.
-  if (!reader_)
+  if (failed_)
     return false;
   return true;
 }