command_buffer: Implement EXT_blend_func_extended

ui/gl/gl_bindings_api_autogen_gl.h

 // Copyright 2014 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.
 //
 // This file is auto-generated from
 // ui/gl/generate_bindings.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 326 matching lines @@
                             GLsizei* count,
                             GLuint* shaders) override;
 GLint glGetAttribLocationFn(GLuint program, const char* name) override;
 void glGetBooleanvFn(GLenum pname, GLboolean* params) override;
 void glGetBufferParameterivFn(GLenum target,
                               GLenum pname,
                               GLint* params) override;
 GLenum glGetErrorFn(void) override;
 void glGetFenceivNVFn(GLuint fence, GLenum pname, GLint* params) override;
 void glGetFloatvFn(GLenum pname, GLfloat* params) override;
+GLint glGetFragDataIndexFn(GLuint program, const char* name) override;
 GLint glGetFragDataLocationFn(GLuint program, const char* name) override;
 void glGetFramebufferAttachmentParameterivEXTFn(GLenum target,
                                                 GLenum attachment,
                                                 GLenum pname,
                                                 GLint* params) override;
 GLenum glGetGraphicsResetStatusARBFn(void) override;
 void glGetInteger64i_vFn(GLenum target, GLuint index, GLint64* data) override;
 void glGetInteger64vFn(GLenum pname, GLint64* params) override;
 void glGetIntegeri_vFn(GLenum target, GLuint index, GLint* data) override;
 void glGetIntegervFn(GLenum pname, GLint* params) override;
@@ skipping 457 matching lines @@
                               GLsizei stride,
                               const void* ptr) override;
 void glVertexAttribPointerFn(GLuint indx,
                              GLint size,
                              GLenum type,
                              GLboolean normalized,
                              GLsizei stride,
                              const void* ptr) override;
 void glViewportFn(GLint x, GLint y, GLsizei width, GLsizei height) override;
 GLenum glWaitSyncFn(GLsync sync, GLbitfield flags, GLuint64 timeout) override;