Remove DesktopRegion parameter in DesktopCapturer::Capture.

webrtc/modules/desktop_capture/window_capturer_mac.mm

 /*
  *  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.
  */
 
@@ skipping 37 matching lines @@
                                  full_screen_chrome_window_detector);
   virtual ~WindowCapturerMac();
 
   // WindowCapturer interface.
   bool GetWindowList(WindowList* windows) override;
   bool SelectWindow(WindowId id) override;
   bool BringSelectedWindowToFront() override;
 
   // DesktopCapturer interface.
   void Start(Callback* callback) override;
-  void Capture(const DesktopRegion& region) override;
+  void CaptureFrame() override;
 
  private:
   Callback* callback_ = nullptr;
 
   // The window being captured.
   CGWindowID window_id_ = 0;
 
   rtc::scoped_refptr<FullScreenChromeWindowDetector>
       full_screen_chrome_window_detector_;
 
@@ skipping 100 matching lines @@
   return result;
 }
 
 void WindowCapturerMac::Start(Callback* callback) {
   assert(!callback_);
   assert(callback);
 
   callback_ = callback;
 }
 
-void WindowCapturerMac::Capture(const DesktopRegion& region) {
+void WindowCapturerMac::CaptureFrame() {
   if (!IsWindowValid(window_id_)) {
     callback_->OnCaptureResult(Result::ERROR_PERMANENT, nullptr);
     return;
   }
 
   CGWindowID on_screen_window = window_id_;
   if (full_screen_chrome_window_detector_) {
     CGWindowID full_screen_window =
         full_screen_chrome_window_detector_->FindFullScreenWindow(window_id_);
 
@@ skipping 45 matching lines @@
 }
 
 }  // namespace
 
 // static
 WindowCapturer* WindowCapturer::Create(const DesktopCaptureOptions& options) {
   return new WindowCapturerMac(options.full_screen_chrome_window_detector());
 }
 
 }  // namespace webrtc