Moving the GL implementation details into a sub folder for client display.

remoting/client/display/gl_renderer_delegate.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.
 
-#ifndef REMOTING_CLIENT_GL_RENDERER_DELEGATE_H_
-#define REMOTING_CLIENT_GL_RENDERER_DELEGATE_H_
+#ifndef REMOTING_CLIENT_DISPLAY_GL_RENDERER_DELEGATE_H_
+#define REMOTING_CLIENT_DISPLAY_GL_RENDERER_DELEGATE_H_
 
 #include "base/macros.h"
 
 namespace remoting {
 
 // Interface to interact with GlRenderer. All functions will be called on the
 // display thread.
 class GlRendererDelegate {
  public:
   // Called when GlRenderer is about to render a frame on current OpenGL
   // surface. Return true if GlRenderer can continue the render process.
   virtual bool CanRenderFrame() = 0;
 
   // Called after GlRenderer has successfully rendered a frame on current OpenGL
   // surface.
   virtual void OnFrameRendered() = 0;
 
   // Called when the size of the canvas (= size of desktop frame) is changed.
   virtual void OnSizeChanged(int width, int height) = 0;
 
  protected:
   virtual ~GlRendererDelegate() {}
 };
 
 }  // namespace remoting
-#endif  // REMOTING_CLIENT_GL_RENDERER_DELEGATE_H_
+#endif  // REMOTING_CLIENT_DISPLAY_GL_RENDERER_DELEGATE_H_