Adding the iOS app and integration example with GlRenderer.

remoting/client/gl_drawable.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_OPENGL_GL_DRAWABLE_H_

[Sergey Ulanov, 2016/12/19 23:50:21]

remove _OPENGL_ part

+#define REMOTING_CLIENT_OPENGL_GL_DRAWABLE_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+#include <list>
+#include <memory>

[Sergey Ulanov, 2016/12/19 23:50:21]

nit: Don't need any of the includes above.

+
+#include "base/macros.h"
+
+namespace remoting {
+
+class GlCanvas;
+
+class GlDrawable {
+ public:
+  GlDrawable() {}
+  virtual ~GlDrawable() {}
+
+  // Sets the canvas on which the object will be drawn.
+  // If |canvas| is nullptr, nothing will happen when calling Draw().
+  virtual void SetCanvas(GlCanvas* canvas) = 0;
+
+  // Draws the object on the canvas.
+  virtual void Draw() = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(GlDrawable);
+};
+
+}  // namespace remoting
+
+#endif  // REMOTING_CLIENT_OPENGL_GL_DRAWABLE_H_