chrome/blink: Add functionality for in-product help for media elements.

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

Index: third_party/WebKit/Source/core/html/media/MediaControls.h
diff --git a/third_party/WebKit/Source/core/html/media/MediaControls.h b/third_party/WebKit/Source/core/html/media/MediaControls.h
index b2b00dbbd71ea136c4262275bc9f1b4023c37d0b..d7f2bb79549d9382b601ef1d5008c4691a89e00a 100644
--- a/third_party/WebKit/Source/core/html/media/MediaControls.h
+++ b/third_party/WebKit/Source/core/html/media/MediaControls.h
@@ -14,6 +14,7 @@ namespace blink {
 class Document;
 class HTMLDivElement;
 class HTMLMediaElement;
+class IntRect;
 class LayoutObject;
 class ShadowRoot;
 
@@ -69,6 +70,9 @@ class CORE_EXPORT MediaControls : public GarbageCollectedMixin {
   virtual Document& OwnerDocument() = 0;
   virtual void OnMediaControlsEnabledChange() = 0;
 
+  virtual bool GetDownloadButtonRect(IntRect&) = 0;
+  virtual void InProductHelpDisabled() = 0;
+
   DECLARE_VIRTUAL_TRACE();
 
  private: