Fix the conditions when fullscreen detector listeners are registered

third_party/WebKit/Source/core/html/HTMLMediaElement.h

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.h b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
index 6f86d8aab039263f8af8aa14969fbea0dea10906..5d42da7ec3c7d9b275cca434ea7caae3068da761 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
@@ -333,6 +333,9 @@ class CORE_EXPORT HTMLMediaElement
   bool isURLAttribute(const Attribute&) const override;
   void attachLayoutTree(const AttachContext& = AttachContext()) override;
 
+  InsertionNotificationRequest insertedInto(ContainerNode*) override;
+  void removedFrom(ContainerNode*) override;
+
   void didMoveToNewDocument(Document& oldDocument) override;
   virtual KURL posterImageURL() const { return KURL(); }
 
@@ -353,9 +356,7 @@ class CORE_EXPORT HTMLMediaElement
   bool isMouseFocusable() const final;
   bool layoutObjectIsNeeded(const ComputedStyle&) override;
   LayoutObject* createLayoutObject(const ComputedStyle&) override;
-  InsertionNotificationRequest insertedInto(ContainerNode*) final;
   void didNotifySubtreeInsertionsToDocument() override;
-  void removedFrom(ContainerNode*) final;
   void didRecalcStyle() final;
 
   bool canStartSelection() const override { return false; }