When HLS redirects are encountered recreate WebMediaPlayer.

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 281182a92ad3f445184f93a6e5f8c10925b69482..2a3c8063d85b42e41abaee891725724d910db460 100644
--- a/media/blink/multibuffer_data_source.cc
+++ b/media/blink/multibuffer_data_source.cc
@@ -328,6 +328,10 @@ int64_t MultibufferDataSource::GetMemoryUsage() const {
          << url_data_->multibuffer()->block_size_shift();
 }
 
+GURL MultibufferDataSource::GetResponseOriginURL() const {
+  return url_data_->url();
+}
+
 void MultibufferDataSource::Read(int64_t position,
                                  int size,
                                  uint8_t* data,