Expose glResizeCHROMIUM() and remove some uses of MojoGLES2GetGLES2Interface().

services/js/modules/gl/context.cc

Index: services/js/modules/gl/context.cc
diff --git a/services/js/modules/gl/context.cc b/services/js/modules/gl/context.cc
index 00f8b3cee01f38f91900690ae1bdd51a0261d00e..1e265336bb5afcad5e50976bea7aff07510c70dd 100644
--- a/services/js/modules/gl/context.cc
+++ b/services/js/modules/gl/context.cc
@@ -2,17 +2,21 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#ifndef GL_GLEXT_PROTOTYPES
+#define GL_GLEXT_PROTOTYPES
+#endif
+
 #include "services/js/modules/gl/context.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
+#include <GLES2/gl2extchromium.h>
 
 #include "base/bind.h"
 #include "gin/arguments.h"
 #include "gin/array_buffer.h"
 #include "gin/object_template_builder.h"
 #include "gin/per_context_data.h"
-#include "gpu/command_buffer/client/gles2_interface.h"
 #include "mojo/public/c/gles2/gles2.h"
 #include "mojo/public/cpp/environment/environment.h"
 #include "mojo/public/cpp/environment/logging.h"
@@ -185,10 +189,7 @@ Context::~Context() {
 }
 
 void Context::Resize(GLuint width, GLuint height, GLfloat scale_factor) {
-  static_cast<gpu::gles2::GLES2Interface*>(
-      MojoGLES2GetGLES2Interface(context_))->ResizeCHROMIUM(width,
-                                                            height,
-                                                            scale_factor);
+  glResizeCHROMIUM(width, height, scale_factor);
 }
 
 void Context::ContextLost() {