cc: Use ui/gfx geometry types for the CCRenderPass and CCDrawQuad classes.

cc/stubs/int_size.h

Index: cc/stubs/int_size.h
diff --git a/cc/stubs/int_size.h b/cc/stubs/int_size.h
index c53f4f155dd6667c239d4da0eca87c8f5d19e6ad..8b75f1ee43e7c47874268fd71a0764706cf7ab05 100644
--- a/cc/stubs/int_size.h
+++ b/cc/stubs/int_size.h
@@ -10,6 +10,7 @@
 #else
 #include "third_party/WebKit/Source/WebCore/platform/graphics/IntSize.h"
 #endif
+#include "ui/gfx/size.h"
 
 namespace cc {
 
@@ -27,6 +28,13 @@ public:
     {
 
     }
+
+    explicit IntSize(gfx::Size size)
+        : WebCore::IntSize(size.width(), size.height())
+    {
+    }
+
+    operator gfx::Size() const { return gfx::Size(width(), height()); }
 };
 
 }