Add ES3 commands GetVertexAttribI{u}iv to GPU command buffer.

gpu/command_buffer/client/gles2_interface_autogen.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
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 291 matching lines @@
 virtual void GetUniformfv(GLuint program, GLint location, GLfloat* params) = 0;
 virtual void GetUniformiv(GLuint program, GLint location, GLint* params) = 0;
 virtual void GetUniformuiv(GLuint program, GLint location, GLuint* params) = 0;
 virtual void GetUniformIndices(GLuint program,
                                GLsizei count,
                                const char* const* names,
                                GLuint* indices) = 0;
 virtual GLint GetUniformLocation(GLuint program, const char* name) = 0;
 virtual void GetVertexAttribfv(GLuint index, GLenum pname, GLfloat* params) = 0;
 virtual void GetVertexAttribiv(GLuint index, GLenum pname, GLint* params) = 0;
+virtual void GetVertexAttribIiv(GLuint index, GLenum pname, GLint* params) = 0;
+virtual void GetVertexAttribIuiv(GLuint index,
+                                 GLenum pname,
+                                 GLuint* params) = 0;
 virtual void GetVertexAttribPointerv(GLuint index,
                                      GLenum pname,
                                      void** pointer) = 0;
 virtual void Hint(GLenum target, GLenum mode) = 0;
 virtual void InvalidateFramebuffer(GLenum target,
                                    GLsizei count,
                                    const GLenum* attachments) = 0;
 virtual void InvalidateSubFramebuffer(GLenum target,
                                       GLsizei count,
                                       const GLenum* attachments,
@@ skipping 434 matching lines @@
                                           GLint bounds_height,
                                           GLfloat uv_x,
                                           GLfloat uv_y,
                                           GLfloat uv_width,
                                           GLfloat uv_height) = 0;
 virtual void SwapInterval(GLint interval) = 0;
 virtual void MatrixLoadfCHROMIUM(GLenum matrixMode, const GLfloat* m) = 0;
 virtual void MatrixLoadIdentityCHROMIUM(GLenum matrixMode) = 0;
 virtual void BlendBarrierKHR() = 0;
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_AUTOGEN_H_