Add PlatformLocalFrame class.

third_party/WebKit/Source/platform/PlatformChromeClient.h

Index: third_party/WebKit/Source/platform/PlatformChromeClient.h
diff --git a/third_party/WebKit/Source/platform/PlatformChromeClient.h b/third_party/WebKit/Source/platform/PlatformChromeClient.h
index 3f939b80f2cf2b00f12068992a23d0a5960ec9f9..07d8321a263178f3b87d8b6626fa0719ffa55df3 100644
--- a/third_party/WebKit/Source/platform/PlatformChromeClient.h
+++ b/third_party/WebKit/Source/platform/PlatformChromeClient.h
@@ -33,8 +33,7 @@
 
 namespace blink {
 class IntRect;
-class FrameViewBase;
-class LocalFrame;
+class PlatformLocalFrame;
 
 class PLATFORM_EXPORT PlatformChromeClient
     : public GarbageCollectedFinalized<PlatformChromeClient> {
@@ -50,13 +49,13 @@ class PLATFORM_EXPORT PlatformChromeClient
 
   // Converts the rect from the viewport coordinates to screen coordinates.
   virtual IntRect ViewportToScreen(const IntRect&,
-                                   const FrameViewBase*) const = 0;
+                                   const PlatformLocalFrame*) const = 0;
 
   // Converts the scalar value from the window coordinates to the viewport
   // scale.
   virtual float WindowToViewportScalar(const float) const = 0;
 
-  virtual void ScheduleAnimation(LocalFrame*) = 0;
+  virtual void ScheduleAnimation(const PlatformLocalFrame*) = 0;
 };
 
 }  // namespace blink