cc: Remove WebCore dependecies from CCRenderPass and CCDrawQuad classes.

cc/stubs/IntSize.h

Index: cc/stubs/IntSize.h
diff --git a/cc/stubs/IntSize.h b/cc/stubs/IntSize.h
index c53f4f155dd6667c239d4da0eca87c8f5d19e6ad..916a4fef71fb8a7180ea739a45f5fe91c653f8ff 100644
--- a/cc/stubs/IntSize.h
+++ b/cc/stubs/IntSize.h
@@ -10,6 +10,7 @@
 #else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/IntSize.h"
 #endif
+#include <public/WebSize.h>
 
 namespace cc {
 
@@ -27,6 +28,16 @@ public:
     {
 
     }
+
+    IntSize(WebKit::WebSize point)
+        : WebCore::IntSize(point.width, point.height)
+    {
+    }
+
+    operator WebKit::WebSize() const
+    {
+        return WebKit::WebSize(width(), height());
+    }
 };
 
 }