Autoplay time metric

third_party/WebKit/Source/core/html/media/AutoplayPolicy.h

Index: third_party/WebKit/Source/core/html/media/AutoplayPolicy.h
diff --git a/third_party/WebKit/Source/core/html/media/AutoplayPolicy.h b/third_party/WebKit/Source/core/html/media/AutoplayPolicy.h
index 8e20d46c478082673517bb99a75eb2cfae47d249..b79ddd2fabdd71fa8ca8eb394d9228a7d23fc83e 100644
--- a/third_party/WebKit/Source/core/html/media/AutoplayPolicy.h
+++ b/third_party/WebKit/Source/core/html/media/AutoplayPolicy.h
@@ -8,6 +8,7 @@
 #include "bindings/core/v8/Nullable.h"
 #include "core/dom/ExceptionCode.h"
 #include "platform/heap/Handle.h"
+#include "public/platform/WebMediaPlayerClient.h"
 
 namespace blink {
 
@@ -56,6 +57,9 @@ class AutoplayPolicy final : public GarbageCollected<AutoplayPolicy> {
   // gesture is currently being processed.
   bool IsGestureNeededForPlayback() const;
 
+  // Called when source is initialized and loading starts.
+  void OnLoadStarted(WebMediaPlayer::LoadType);
+
   DECLARE_VIRTUAL_TRACE();
 
  private: