Remove PPB_ImageData_API::GetPlatformCanvas()

ppapi/thunk/ppb_image_data_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_IMAGE_DATA_API_H_
 #define PPAPI_THUNK_PPB_IMAGE_DATA_API_H_
 
 #include <stdint.h>
 
 #include "ppapi/c/pp_bool.h"
@@ skipping 13 matching lines @@
   virtual ~PPB_ImageData_API() {}
 
   virtual PP_Bool Describe(PP_ImageDataDesc* desc) = 0;
   virtual void* Map() = 0;
   virtual void Unmap() = 0;
 
   // Trusted inteface.
   virtual int32_t GetSharedMemory(base::SharedMemory** shm,
                                   uint32_t* byte_count) = 0;
 
-  // Get the platform-specific canvas that backs this ImageData, if there is
-  // one.
-  // The canvas will be NULL:
-  //   * If the image is not mapped.
-  //   * Within untrusted code (which does not have skia).
-  //   * If the ImageData is not backed by a platform-specific image buffer.
-  //     This will be the case for ImageDatas created for use in NaCl.
-  // For this last reason, you should prefer GetCanvas any time you don't need
-  // a platform-specific canvas (e.g., for use with platform-specific APIs).
-  // Anything that relies on having a PlatformCanvas will not work for ImageDat
-  // objects created from NaCl.
-  virtual SkCanvas* GetPlatformCanvas() = 0;
-
   // Get the canvas that backs this ImageData, if there is one.
   // The canvas will be NULL:
   //   * If the image is not mapped.
   //   * Within untrusted code (which does not have skia).
   virtual SkCanvas* GetCanvas() = 0;
 
   // Signal that this image is a good candidate for reuse. Call this from APIs
   // that receive ImageData resources of a fixed size and where the plugin will
   // release its reference to the ImageData. If the current implementation
   // supports image data reuse (only supported out-of-process) then the
   // ImageData will be marked and potentially cached for re-use.
   virtual void SetIsCandidateForReuse() = 0;
 };
 
 }  // namespace thunk
 }  // namespace ppapi
 
 #endif  // PPAPI_THUNK_PPB_IMAGE_DATA_API_H_