Add Pepper support for several GL extensions

ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.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_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_
-#define PPAPI_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_
-
-#include "ppapi/c/pp_resource.h"
-#include "ppapi/c/ppb_opengles2.h"
-
-#define PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE_0_1 \
-    "PPB_GLESChromiumTextureMapping(Dev);0.1"
-#define PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE \
-    PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_INTERFACE_0_1
-
-struct PPB_GLESChromiumTextureMapping_Dev_0_1 {
-  // Maps the sub-image of a texture. 'level', 'xoffset', 'yoffset', 'width',
-  // 'height', 'format' and 'type' correspond to the similarly named parameters
-  // of TexSubImage2D, and define the sub-image region, as well as the format of
-  // the data. 'access' must be one of GL_READ_ONLY, GL_WRITE_ONLY or
-  // GL_READ_WRITE. If READ is included, the returned buffer will contain the
-  // pixel data for the sub-image. If WRITE is included, the pixel data for the
-  // sub-image will be updated to the contents of the buffer when
-  // UnmapTexSubImage2DCHROMIUM is called. NOTE: for a GL_WRITE_ONLY map, it
-  // means that all the values of the buffer must be written.
-  void* (*MapTexSubImage2DCHROMIUM)(
-     PP_Resource context,
-     GLenum target,
-     GLint level,
-     GLint xoffset,
-     GLint yoffset,
-     GLsizei width,
-     GLsizei height,
-     GLenum format,
-     GLenum type,
-     GLenum access);
-
-  // Unmaps the sub-image of a texture. If the sub-image was mapped with one of
-  // the WRITE accesses, the pixels are updated at this time to the contents of
-  // the buffer. 'mem' must be the pointer returned by MapTexSubImage2DCHROMIUM.
-  void (*UnmapTexSubImage2DCHROMIUM)(PP_Resource context, const void* mem);
-};
-
-typedef struct PPB_GLESChromiumTextureMapping_Dev_0_1
-    PPB_GLESChromiumTextureMapping_Dev;
-
-#endif  // PPAPI_C_DEV_PPB_GLES_CHROMIUM_TEXTURE_MAPPING_DEV_H_