cc: Remove all remaining use of WebCore Rect/Point/Size types from the compositor.

cc/scrollbar_geometry_fixed_thumb.h

Index: cc/scrollbar_geometry_fixed_thumb.h
diff --git a/cc/scrollbar_geometry_fixed_thumb.h b/cc/scrollbar_geometry_fixed_thumb.h
index 1deed9d68ccb0a6a11669f34c89a7865501ca298..14803729448c3b75ec72d578eba2eaf0a50784a2 100644
--- a/cc/scrollbar_geometry_fixed_thumb.h
+++ b/cc/scrollbar_geometry_fixed_thumb.h
@@ -5,9 +5,9 @@
 #ifndef CC_SCROLLBAR_GEOMETRY_FIXED_THUMB_H_
 #define CC_SCROLLBAR_GEOMETRY_FIXED_THUMB_H_
 
-#include "IntSize.h"
 #include "cc/cc_export.h"
 #include "cc/scrollbar_geometry_stub.h"
+#include "ui/gfx/size.h"
 
 namespace cc {
 
@@ -32,7 +32,7 @@ public:
 private:
     explicit ScrollbarGeometryFixedThumb(scoped_ptr<WebKit::WebScrollbarThemeGeometry>);
 
-    IntSize m_thumbSize;
+    gfx::Size m_thumbSize;
 };
 
 }