Restore the JS Spinning Cube demo

services/js/modules/gl/context.h

 // Copyright 2013 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.
 
-#ifndef MOJO_SERVICES_JS_MODULES_GL_CONTEXT_H_
-#define MOJO_SERVICES_JS_MODULES_GL_CONTEXT_H_
+#ifndef SERVICES_JS_MODULES_GL_CONTEXT_H_
+#define SERVICES_JS_MODULES_GL_CONTEXT_H_
 
 #include <GLES2/gl2.h>
 
 #include "base/memory/weak_ptr.h"
 #include "gin/handle.h"
 #include "gin/public/wrapper_info.h"
 #include "gin/runner.h"
 #include "gin/wrappable.h"
 #include "mojo/edk/js/handle.h"
 #include "mojo/public/c/gles2/gles2.h"
@@ skipping 27 matching lines @@
   static GLint GetAttribLocation(GLuint program, const std::string& name);
   static std::string GetProgramInfoLog(GLuint program);
   static std::string GetShaderInfoLog(GLuint shader);
   static GLint GetUniformLocation(GLuint program, const std::string& name);
   static void ShaderSource(GLuint shader, const std::string& source);
   static void UniformMatrix4fv(GLint location, GLboolean transpose,
                                const gin::ArrayBufferView& buffer);
   static void VertexAttribPointer(GLuint index, GLint size, GLenum type,
                                   GLboolean normalized, GLsizei stride,
                                   uint64_t offset);
+  void Resize(GLuint width, GLuint height, GLfloat scale_factor);
 
  private:
   gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
       v8::Isolate* isolate) override;
 
   explicit Context(v8::Isolate* isolate,
                    mojo::Handle handle,
                    v8::Handle<v8::Function> context_lost_callback);
   ~Context() override;
 
   void ContextLost();
   static void ContextLostThunk(void* closure);
 
   base::WeakPtr<gin::Runner> runner_;
   v8::Persistent<v8::Function> context_lost_callback_;
   MojoGLES2Context context_;
 };
 
 }  // namespace gl
 }  // namespace js
 
-#endif  // MOJO_SERVICES_JS_MODULES_GL_CONTEXT_H_
+#endif  // SERVICES_JS_MODULES_GL_CONTEXT_H_