[Chromoting] Unit Tests for GlRenderer

remoting/client/gl_renderer.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_H_
 #define REMOTING_CLIENT_GL_RENDERER_H_
 
 #include <queue>
 
 #include "base/callback.h"
@@ skipping 10 matching lines @@
 }  // namespace webrtc
 
 namespace remoting {
 
 namespace protocol {
 class CursorShapeInfo;
 }  // namespace protocol
 
 class GlCanvas;
 class GlRendererDelegate;
+class GlRendererTest;
 
 // Renders desktop and cursor on the OpenGL surface. Can be created on any
 // thread but thereafter must be used and deleted on the same thread (usually
 // the display thread. Or any Chromium thread with a task runner attached to
 // it) unless otherwise noted.
 // The unit of all length arguments is pixel.
 class GlRenderer {
  public:
   explicit GlRenderer();
   ~GlRenderer();
@@ skipping 57 matching lines @@
   // Do nothing if render_callback_ is not set yet or an existing rendering task
   // in the queue will cover changes before this function is called.
   void RequestRender();
 
   // Draws out everything on current OpenGL buffer and runs closures in
   // |pending_done_callbacks_|.
   // Nothing will be drawn nor the done callbacks will be run if |delegate_| is
   // invalid or !delegate_.CanRenderFrame().
   void OnRender();
 
+  friend class GlRendererTest;
+
   base::WeakPtr<GlRendererDelegate> delegate_;
 
   // Done callbacks from OnFrameReceived. Will all be called once rendering
   // takes place.
   std::queue<base::Closure> pending_done_callbacks_;
 
   bool render_scheduled_ = false;
 
   int view_width_ = 0;
   int view_height_ = 0;
   int canvas_width_ = 0;
   int canvas_height_ = 0;
 
   std::unique_ptr<GlCanvas> canvas_;
 
   GlCursor cursor_;
   GlCursorFeedback cursor_feedback_;
   GlDesktop desktop_;
 
   base::ThreadChecker thread_checker_;
   base::WeakPtr<GlRenderer> weak_ptr_;
   base::WeakPtrFactory<GlRenderer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GlRenderer);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_CLIENT_GL_RENDERER_H_