Added SetLayerTransform to PPAPI

ppapi/thunk/ppb_graphics_2d_api.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_
 #define PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_
 
 #include <stdint.h>
 
 #include "base/memory/ref_counted.h"
@@ skipping 18 matching lines @@
   virtual PP_Bool Describe(PP_Size* size, PP_Bool* is_always_opaque) = 0;
   virtual void PaintImageData(PP_Resource image_data,
                               const PP_Point* top_left,
                               const PP_Rect* src_rect) = 0;
   virtual void Scroll(const PP_Rect* clip_rect,
                       const PP_Point* amount) = 0;
   virtual void ReplaceContents(PP_Resource image_data) = 0;
   virtual int32_t Flush(scoped_refptr<TrackedCallback> callback) = 0;
   virtual PP_Bool SetScale(float scale) = 0;
   virtual float GetScale() = 0;
+  virtual PP_Bool SetLayerTransform(float scale,
+                                    const PP_Point* origin,
+                                    const PP_Point* translate) = 0;
 
   // Test only
   virtual bool ReadImageData(PP_Resource image, const PP_Point* top_left) = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_GRAPHICS_2D_API_H_