Use WebViewClient instead of BlinkPlatform for screen lock.

Source/modules/screen_orientation/ScreenOrientationController.h

Index: Source/modules/screen_orientation/ScreenOrientationController.h
diff --git a/Source/modules/screen_orientation/ScreenOrientationController.h b/Source/modules/screen_orientation/ScreenOrientationController.h
index 6fb580022087004c5aa0ceb2b0eb1a6f2446fb1a..0e5e4b7741fc73e835d8bda504a3679719e6c707 100644
--- a/Source/modules/screen_orientation/ScreenOrientationController.h
+++ b/Source/modules/screen_orientation/ScreenOrientationController.h
@@ -5,34 +5,44 @@
 #ifndef ScreenOrientationController_h
 #define ScreenOrientationController_h
 
-#include "core/dom/DocumentSupplementable.h"
+#include "core/page/Page.h"
 #include "core/page/PageLifecycleObserver.h"
+#include "platform/Supplementable.h"
+#include "public/platform/WebLockOrientationCallback.h"
+#include "public/platform/WebScreenOrientationLockType.h"
 #include "public/platform/WebScreenOrientationType.h"
 
+namespace blink {
+class WebScreenOrientationClient;
+}
+
 namespace WebCore {
 
 class FrameView;
 
-class ScreenOrientationController FINAL : public NoBaseWillBeGarbageCollectedFinalized<ScreenOrientationController>, public DocumentSupplement, public PageLifecycleObserver {
+class ScreenOrientationController FINAL : public NoBaseWillBeGarbageCollectedFinalized<ScreenOrientationController>, public WillBeHeapSupplement<Page>, public PageLifecycleObserver {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(ScreenOrientationController);
 public:
     virtual ~ScreenOrientationController();
 
     blink::WebScreenOrientationType orientation() const;
 
-    // DocumentSupplement API.
-    static ScreenOrientationController& from(Document&);
+    static void provideTo(Page&, blink::WebScreenOrientationClient*);
+    static ScreenOrientationController& from(Page&);
     static const char* supplementName();
 
+    void lockOrientation(blink::WebScreenOrientationLockType, blink::WebLockOrientationCallback*);
+    void unlockOrientation();
+
 private:
-    explicit ScreenOrientationController(Document&);
+    explicit ScreenOrientationController(Page&, blink::WebScreenOrientationClient*);
     static blink::WebScreenOrientationType computeOrientation(FrameView*);
 
     // Inherited from PageLifecycleObserver.
     virtual void pageVisibilityChanged() OVERRIDE;
 
-    Document& m_document;
     blink::WebScreenOrientationType m_overrideOrientation;
+    blink::WebScreenOrientationClient* m_client;
 };
 
 } // namespace WebCore