Remove DesktopRegion parameter in DesktopCapturer::Capture.

webrtc/modules/desktop_capture/screen_capturer_differ_wrapper.cc

 /*
  *  Copyright (c) 2016 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 143 matching lines @@
 void ScreenCapturerDifferWrapper::Start(DesktopCapturer::Callback* callback) {
   callback_ = callback;
   base_capturer_->Start(this);
 }
 
 void ScreenCapturerDifferWrapper::SetSharedMemoryFactory(
     std::unique_ptr<SharedMemoryFactory> shared_memory_factory) {
   base_capturer_->SetSharedMemoryFactory(std::move(shared_memory_factory));
 }
 
-void ScreenCapturerDifferWrapper::Capture(const DesktopRegion& region) {
-  base_capturer_->Capture(region);
+void ScreenCapturerDifferWrapper::CaptureFrame() {
+  base_capturer_->CaptureFrame();
 }
 
 bool ScreenCapturerDifferWrapper::GetScreenList(ScreenList* screens) {
   return base_capturer_->GetScreenList(screens);
 }
 
 bool ScreenCapturerDifferWrapper::SelectScreen(ScreenId id) {
   return base_capturer_->SelectScreen(id);
 }
 
@@ skipping 29 matching lines @@
   }
   last_frame_ = frame->Share();
 
   frame->set_capture_time_ms(frame->GetUnderlyingFrame()->capture_time_ms() +
                              (rtc::TimeNanos() - start_time_nanos) /
                                  rtc::kNumNanosecsPerMillisec);
   callback_->OnCaptureResult(result, std::move(frame));
 }
 
 }  // namespace webrtc