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

remoting/client/ios/example_view_controller.mm

 // 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.
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #import "remoting/client/ios/example_view_controller.h"
 
-#import "remoting/client/sys_opengl.h"
+#import "remoting/client/display/sys_opengl.h"
 
 @interface ExampleViewController()
 
 // Helper functions dealing with the GL Context.
 - (void)setupGL;
 - (void)tearDownGL;
 
 @end
 
 @implementation ExampleViewController
@@ skipping 45 matching lines @@
 #pragma mark - GLKViewDelegate
 
 // In general, avoid expensive work in this function to maximize frame rate.
 - (void)glkView:(GLKView*)view drawInRect:(CGRect)rect {
   // Clear to give the background color.
   glClearColor(0.0, 40.0, 0.0, 1.0);
   glClear(GL_COLOR_BUFFER_BIT);
 }
 
 @end