Staging an example iOS project to be the dummy target for CRD iOS App.

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/opengl_wrapper.h"
+
+@interface ExampleViewController()
+
+// Helper functions dealing with the GL Context.
+- (void)setupGL;
+- (void)tearDownGL;
+
+@end
+
+@implementation ExampleViewController
+
+#pragma mark - UIViewController
+
+- (void)viewDidLoad {
+  [super viewDidLoad];
+
+  _context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
+  static_cast<GLKView*>(self.view).context = _context;
+
+  [self setupGL];
+}
+
+- (void)viewDidUnload {
+  [super viewDidUnload];
+  [self tearDownGL];
+
+  if ([EAGLContext currentContext] == _context) {
+    [EAGLContext setCurrentContext:nil];
+  }
+  _context = nil;
+}
+
+- (void)setupGL {
+  [EAGLContext setCurrentContext:_context];
+}
+
+- (void)tearDownGL {
+  [EAGLContext setCurrentContext:_context];
+}
+
+- (void)viewWillAppear:(BOOL)animated {
+  [super viewWillAppear:animated];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+}
+
+- (void)viewWillDisappear:(BOOL)animated {
+  [super viewWillDisappear:NO];
+}
+
+- (void)viewDidLayoutSubviews {
+  [super viewDidLayoutSubviews];
+}
+
+#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