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..fb070173dea7b49ac9f54cc40df54ccced36ef43 100644
--- a/third_party/WebKit/Source/core/page/ChromeClient.h
+++ b/third_party/WebKit/Source/core/page/ChromeClient.h
@@ -39,6 +39,7 @@
 #include "public/platform/WebDragOperation.h"
 #include "public/platform/WebEventListenerProperties.h"
 #include "public/platform/WebFocusType.h"
+#include "public/platform/WebFullscreenCallbacks.h"
 #include "wtf/Forward.h"
 #include "wtf/Optional.h"
 #include "wtf/Vector.h"
@@ -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<WebFullscreenCallbacks>) {}
+  virtual void exitFullscreen(LocalFrame&) {}
   virtual void fullscreenElementChanged(Element*, Element*) {}
 
   virtual void clearCompositedSelection(LocalFrame*) {}