Revert of Add DesktopCapturer GetSourceList SelectSource FocusOnSelectedSource functions

webrtc/modules/desktop_capture/window_capturer.h

Index: webrtc/modules/desktop_capture/window_capturer.h
diff --git a/webrtc/modules/desktop_capture/window_capturer.h b/webrtc/modules/desktop_capture/window_capturer.h
index 4ef07aa1a200220650f90702ba39e88573487044..682778c5586126903ebc4464716f0cf95f87dcb8 100644
--- a/webrtc/modules/desktop_capture/window_capturer.h
+++ b/webrtc/modules/desktop_capture/window_capturer.h
@@ -23,9 +23,10 @@
 
 class DesktopCaptureOptions;
 
-// TODO(zijiehe): Remove this class.
 class WindowCapturer : public DesktopCapturer {
  public:
+  typedef webrtc::WindowId WindowId;
+
   struct Window {
     WindowId id;
 
@@ -35,29 +36,20 @@
 
   typedef std::vector<Window> WindowList;
 
-  // Consumers should use DesktopCapturer::CreateWindowCapturer.
   static WindowCapturer* Create(const DesktopCaptureOptions& options);
 
-  ~WindowCapturer() override;
+  ~WindowCapturer() override {}
 
-  // Deprecated, use GetSourceList().
   // Get list of windows. Returns false in case of a failure.
-  virtual bool GetWindowList(WindowList* windows);
+  virtual bool GetWindowList(WindowList* windows) = 0;
 
-  // Deprecated, use SelectSource().
   // Select window to be captured. Returns false in case of a failure (e.g. if
   // there is no window with the specified id).
-  virtual bool SelectWindow(WindowId id);
+  virtual bool SelectWindow(WindowId id) = 0;
 
-  // Deprecated, use FocusOnSelectedSource().
   // Bring the selected window to the front. Returns false in case of a
   // failure or no window selected.
-  virtual bool BringSelectedWindowToFront();
-
-  // DesktopCapturer interfaces.
-  bool GetSourceList(SourceList* sources) override;
-  bool SelectSource(SourceId id) override;
-  bool FocusOnSelectedSource() override;
+  virtual bool BringSelectedWindowToFront() = 0;
 };
 
 }  // namespace webrtc