Mojo: Convert OVERRIDE -> override in various subdirectories of mojo/.

mojo/apps/js/bindings/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_APPS_JS_BINDINGS_GL_CONTEXT_H_
 #define MOJO_APPS_JS_BINDINGS_GL_CONTEXT_H_
 
 #include <GLES2/gl2.h>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 37 matching lines @@
   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);
 
  private:
   virtual gin::ObjectTemplateBuilder GetObjectTemplateBuilder(
-      v8::Isolate* isolate) OVERRIDE;
+      v8::Isolate* isolate) override;
 
   explicit Context(v8::Isolate* isolate,
                    mojo::Handle handle,
                    v8::Handle<v8::Function> context_lost_callback);
   virtual ~Context();
 
   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
 }  // namespace mojo
 
 #endif  // MOJO_APPS_JS_BINDINGS_GL_CONTEXT_H_