Move willEnterFullscreen to WebRemoteFrame.

third_party/WebKit/Source/web/FullscreenController.h

Index: third_party/WebKit/Source/web/FullscreenController.h
diff --git a/third_party/WebKit/Source/web/FullscreenController.h b/third_party/WebKit/Source/web/FullscreenController.h
index 4d1e9437b24093df2ed6b200a12e3055900f2c72..2655d15d01db25a615d08c59a138a8a2b983b044 100644
--- a/third_party/WebKit/Source/web/FullscreenController.h
+++ b/third_party/WebKit/Source/web/FullscreenController.h
@@ -55,8 +55,6 @@ public:
 
     bool isFullscreen() { return m_fullScreenFrame; }
 
-    void setFullscreenIsForCrossProcessAncestor() { m_fullscreenIsForCrossProcessAncestor = true; }
-
     void updateSize();
 
     DECLARE_TRACE();
@@ -80,10 +78,6 @@ private:
     // If set, the WebView is in fullscreen mode for an element in this frame.
     Member<LocalFrame> m_fullScreenFrame;
 
-    // If set, fullscreen is entered for an element that is a container for
-    // another fullscreen element in an out-of-process iframe.
-    bool m_fullscreenIsForCrossProcessAncestor;
-
     bool m_isCancelingFullScreen;
 };