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

remoting/client/display/gl_helpers.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_HELPERS_H_
-#define REMOTING_CLIENT_GL_HELPERS_H_
+#ifndef REMOTING_CLIENT_DISPLAY_GL_HELPERS_H_
+#define REMOTING_CLIENT_DISPLAY_GL_HELPERS_H_
 
 #include "base/macros.h"
-#include "remoting/client/sys_opengl.h"
+#include "remoting/client/display/sys_opengl.h"
 
 namespace remoting {
 
 // Compiles a shader and returns the reference to the shader if it succeeds.
 GLuint CompileShader(GLenum shader_type, const char* shader_source);
 
 // Creates a program with the given reference to the vertex shader and fragment
 // shader. returns the reference of the program if it succeeds.
 GLuint CreateProgram(GLuint vertex_shader, GLuint fragment_shader);
 
 // Creates and returns the texture names if it succeeds.
 GLuint CreateTexture();
 
 // Creates a GL_ARRAY_BUFFER and fills it with |data|. Returns the reference to
 // the buffer.
 GLuint CreateBuffer(const void* data, int size);
 
 }  // namespace remoting
 
-#endif  // REMOTING_CLIENT_GL_HELPERS_H_
+#endif  // REMOTING_CLIENT_DISPLAY_GL_HELPERS_H_