Refactor overlay fullscreen video handling into a single callback

third_party/WebKit/Source/core/dom/Element.h

Index: third_party/WebKit/Source/core/dom/Element.h
diff --git a/third_party/WebKit/Source/core/dom/Element.h b/third_party/WebKit/Source/core/dom/Element.h
index 750f24249cce3a8f99f382c4896e140eb54f9ebd..f404f3a13fc7783a23c9db88214c888d9b33477e 100644
--- a/third_party/WebKit/Source/core/dom/Element.h
+++ b/third_party/WebKit/Source/core/dom/Element.h
@@ -579,9 +579,6 @@ class CORE_EXPORT Element : public ContainerNode {
   LayoutSize minimumSizeForResizing() const;
   void setMinimumSizeForResizing(const LayoutSize&);
 
-  virtual void didBecomeFullscreenElement() {}
-  virtual void willStopBeingFullscreenElement() {}
-
   // Called by the parser when this element's close tag is reached, signaling
   // that all child tags have been parsed and added.  This is needed for
   // <applet> and <object> elements, which can't lay themselves out until they