Remove DesktopRegion parameter from DesktopCapturer::Capture

webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h

Index: webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h
diff --git a/webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h b/webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h
index 2427ec4c5f00ba0984d05c6e519e8ff8bebfe97c..7f961cfbc881d405206dc2cef967d662dfcd657d 100644
--- a/webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h
+++ b/webrtc/modules/desktop_capture/win/screen_capturer_win_directx.h
@@ -24,8 +24,7 @@
 
 namespace webrtc {
 
-// ScreenCapturerWinDirectx captures 32bit RGBA using DirectX. This
-// implementation won't work when ScreenCaptureFrameQueue.kQueueLength is not 2.
+// ScreenCapturerWinDirectx captures 32bit RGBA using DirectX.
 class ScreenCapturerWinDirectx : public ScreenCapturer {
  public:
   // Whether the system supports DirectX based capturing.
@@ -38,7 +37,7 @@ class ScreenCapturerWinDirectx : public ScreenCapturer {
   void Start(Callback* callback) override;
   void SetSharedMemoryFactory(
       std::unique_ptr<SharedMemoryFactory> shared_memory_factory) override;
-  void CaptureFrame() override;
+  void Capture() override;
   bool GetScreenList(ScreenList* screens) override;
   bool SelectScreen(ScreenId id) override;