DirectX based screen capturer logic

webrtc/modules/desktop_capture/desktop_capture_options.h

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 #ifndef WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURE_OPTIONS_H_
@@ skipping 65 matching lines @@
     disable_effects_ = disable_effects;
   }
 
 #if defined(WEBRTC_WIN)
   bool allow_use_magnification_api() const {
     return allow_use_magnification_api_;
   }
   void set_allow_use_magnification_api(bool allow) {
     allow_use_magnification_api_ = allow;
   }
+  // Allowing directx based capturer or not, this capturer works on windows 7
+  // with platform update / windows 8 or upper.
+  bool allow_directx_capturer() const {
+    return allow_directx_capturer_;
+  }
+  void set_allow_directx_capturer(bool enabled) {
+    allow_directx_capturer_ = enabled;
+  }
 #endif
 
  private:
 #if defined(USE_X11)
   rtc::scoped_refptr<SharedXDisplay> x_display_;
 #endif
 
 #if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
   rtc::scoped_refptr<DesktopConfigurationMonitor> configuration_monitor_;
   rtc::scoped_refptr<FullScreenChromeWindowDetector>
       full_screen_window_detector_;
 #endif
 
 #if defined(WEBRTC_WIN)
   bool allow_use_magnification_api_;
+  bool allow_directx_capturer_;

[Sergey Ulanov, 2016/05/13 19:38:10]

= false; so the new capturer is disabled by default.
Also please move all initializers from desktop_capture_options.cc here.

[Hzj_jie, 2016/05/16 18:17:28]

Done.

 #endif
   bool use_update_notifications_;
   bool disable_effects_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURE_OPTIONS_H_