Regularize how ImageData and Graphics2D are created.

ppapi/shared_impl/api_id.h

 // Copyright (c) 2011 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_SHARED_IMPL_API_ID_H_
 #define PPAPI_SHARED_IMPL_API_ID_H_
 
 namespace ppapi {
 
 // These numbers must be all small integers. They are used in a lookup table
@@ skipping 14 matching lines @@
   API_ID_PPB_FILE_SYSTEM,
   API_ID_PPB_FLASH,
   API_ID_PPB_FLASH_CLIPBOARD,
   API_ID_PPB_FLASH_FILE_FILEREF,
   API_ID_PPB_FLASH_FILE_MODULELOCAL,
   API_ID_PPB_FLASH_MENU,
   API_ID_PPB_FLASH_NETCONNECTOR,
   API_ID_PPB_FONT,
   API_ID_PPB_GRAPHICS_2D,
   API_ID_PPB_GRAPHICS_3D,
+  API_ID_PPB_IMAGE_DATA,
   API_ID_PPB_INSTANCE,
   API_ID_PPB_INSTANCE_PRIVATE,
   API_ID_PPB_OPENGLES2,
   API_ID_PPB_PDF,
   API_ID_PPB_SURFACE_3D,
   API_ID_PPB_TCPSOCKET_PRIVATE,
   API_ID_PPB_TESTING,
   API_ID_PPB_TEXT_INPUT,
   API_ID_PPB_UDPSOCKET_PRIVATE,
   API_ID_PPB_URL_LOADER,
@@ skipping 14 matching lines @@
 
   API_ID_RESOURCE_CREATION,
 
   // Must be last to indicate the number of interface IDs.
   API_ID_COUNT
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_API_ID_H_