Convert FullscreenController to use WebCallbacks

third_party/WebKit/Source/core/page/ChromeClient.h

Index: third_party/WebKit/Source/core/page/ChromeClient.h
diff --git a/third_party/WebKit/Source/core/page/ChromeClient.h b/third_party/WebKit/Source/core/page/ChromeClient.h
index 3ee097338b203646ab39d741286a0f4ac9b84a5e..fe80a06c2ae69e56cf03b789ed5d9987734fb6dd 100644
--- a/third_party/WebKit/Source/core/page/ChromeClient.h
+++ b/third_party/WebKit/Source/core/page/ChromeClient.h
@@ -57,6 +57,7 @@ class Element;
 class FileChooser;
 class FloatPoint;
 class Frame;
+class FullscreenCallbacks;
 class GraphicsLayer;
 class HTMLFormControlElement;
 class HTMLInputElement;
@@ -245,8 +246,9 @@ class CORE_EXPORT ChromeClient : public HostWindow {
   virtual void detachCompositorAnimationTimeline(CompositorAnimationTimeline*,
                                                  LocalFrame* localRoot) {}
 
-  virtual void enterFullscreenForElement(Element*) {}
-  virtual void exitFullscreen(LocalFrame*) {}
+  virtual void enterFullscreen(LocalFrame&,
+                               std::unique_ptr<FullscreenCallbacks>) {}
+  virtual void exitFullscreen(LocalFrame&) {}
   virtual void fullscreenElementChanged(Element*, Element*) {}
 
   virtual void clearCompositedSelection(LocalFrame*) {}