Load missing glGetInternalformativRobustANGLE entry point.

ui/gl/gl_mock_autogen_gl.h

 // Copyright 2016 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 428 matching lines @@
                   GLint* data));
 MOCK_METHOD2(GetIntegerv, void(GLenum pname, GLint* params));
 MOCK_METHOD4(GetIntegervRobustANGLE,
              void(GLenum pname, GLsizei bufSize, GLsizei* length, GLint* data));
 MOCK_METHOD5(GetInternalformativ,
              void(GLenum target,
                   GLenum internalformat,
                   GLenum pname,
                   GLsizei bufSize,
                   GLint* params));
+MOCK_METHOD6(GetInternalformativRobustANGLE,
+             void(GLenum target,
+                  GLenum internalformat,
+                  GLenum pname,
+                  GLsizei bufSize,
+                  GLsizei* length,
+                  GLint* params));
 MOCK_METHOD5(GetMultisamplefvRobustANGLE,
              void(GLenum pname,
                   GLuint index,
                   GLsizei bufSize,
                   GLsizei* length,
                   GLfloat* val));
 MOCK_METHOD5(GetnUniformfvRobustANGLE,
              void(GLuint program,
                   GLint location,
                   GLsizei bufSize,
@@ skipping 700 matching lines @@
                   const void* ptr));
 MOCK_METHOD6(VertexAttribPointer,
              void(GLuint indx,
                   GLint size,
                   GLenum type,
                   GLboolean normalized,
                   GLsizei stride,
                   const void* ptr));
 MOCK_METHOD4(Viewport, void(GLint x, GLint y, GLsizei width, GLsizei height));
 MOCK_METHOD3(WaitSync, GLenum(GLsync sync, GLbitfield flags, GLuint64 timeout));