Added SetLayerTransform to PPAPI

ppapi/cpp/graphics_2d.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_CPP_GRAPHICS_2D_H_
 #define PPAPI_CPP_GRAPHICS_2D_H_
 
 #include "ppapi/c/pp_stdint.h"
 #include "ppapi/cpp/resource.h"
 #include "ppapi/cpp/size.h"
@@ skipping 266 matching lines @@
   bool SetScale(float scale);
 
   /// GetScale() gets the scale factor that will be applied when painting the
   /// graphics context onto the output device.
   ///
   /// @return Returns the scale factor for the graphics context. If the resource
   /// is invalid, 0.0 will be returned. The default scale for a graphics context
   /// is 1.0.
   float GetScale();
 
+  bool SetLayerTransform(float scale,
+                         const Point& origin,
+                         const Point& translate);
  private:
   Size size_;
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_GRAPHICS_2D_H_