Add glUniformBlockBinding to GPU command buffer.

gpu/command_buffer/client/gles2_implementation_unittest_autogen.h

Index: gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
diff --git a/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h b/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
index abeba0cc2132951d98ace04d92e066a3ffe294fe..f4e5658d65e33e05339da23d0a5d576c714f9be7 100644
--- a/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
+++ b/gpu/command_buffer/client/gles2_implementation_unittest_autogen.h
@@ -2033,6 +2033,17 @@ TEST_F(GLES2ImplementationTest, Uniform4uiv) {
   EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
 }
 
+TEST_F(GLES2ImplementationTest, UniformBlockBinding) {
+  struct Cmds {
+    cmds::UniformBlockBinding cmd;
+  };
+  Cmds expected;
+  expected.cmd.Init(1, 2, 3);
+
+  gl_->UniformBlockBinding(1, 2, 3);
+  EXPECT_EQ(0, memcmp(&expected, commands_, sizeof(expected)));
+}
+
 TEST_F(GLES2ImplementationTest, UniformMatrix2fv) {
   GLfloat data[2][4] = {{0}};
   struct Cmds {