Remove DesktopRegion parameter from DesktopCapturer::Capture

webrtc/modules/desktop_capture/desktop_capturer.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.
  */
 
@@ skipping 13 matching lines @@
 class DesktopFrame;
 
 // Abstract interface for screen and window capturers.
 class DesktopCapturer {
  public:
   enum class Result {
     // The frame was captured successfully.
     SUCCESS,
 
     // There was a temporary error. The caller should continue calling
-    // Capture(), in the expectation that it will eventually recover.
+    // CaptureFrame(), in the expectation that it will eventually recover.
     ERROR_TEMPORARY,
 
     // Capture has failed and will keep failing if the caller tries calling
-    // Capture() again.
+    // CaptureFrame() again.
     ERROR_PERMANENT,
 
     MAX_VALUE = ERROR_PERMANENT
   };
 
   // Interface that must be implemented by the DesktopCapturer consumers.
   class Callback {
    public:
     // Called after a frame has been captured. |frame| is not nullptr if and
     // only if |result| is SUCCESS.
     virtual void OnCaptureResult(Result result,
                                  std::unique_ptr<DesktopFrame> frame) = 0;
 
    protected:
     virtual ~Callback() {}
   };
 
   virtual ~DesktopCapturer() {}
 
   // Called at the beginning of a capturing session. |callback| must remain
   // valid until capturer is destroyed.
   virtual void Start(Callback* callback) = 0;
 
   // Sets SharedMemoryFactory that will be used to create buffers for the
   // captured frames. The factory can be invoked on a thread other than the one
-  // where Capture() is called. It will be destroyed on the same thread. Shared
-  // memory is currently supported only by some DesktopCapturer implementations.
+  // where CaptureFrame() is called. It will be destroyed on the same thread.
+  // Shared memory is currently supported only by some DesktopCapturer
+  // implementations.
   virtual void SetSharedMemoryFactory(
       std::unique_ptr<SharedMemoryFactory> shared_memory_factory) {}
 
-  // This is a legacy interface, consumers should call CaptureFrame() function.
-  virtual void Capture(const DesktopRegion& region) { CaptureFrame(); }
-
   // Captures next frame, and involve callback provided by Start() function.
   // Pending capture requests are canceled when DesktopCapturer is deleted.
-  virtual void CaptureFrame() { Capture(DesktopRegion()); }
+  virtual void CaptureFrame() = 0;
 
   // Sets the window to be excluded from the captured image in the future
   // Capture calls. Used to exclude the screenshare notification window for
   // screen capturing.
   virtual void SetExcludedWindow(WindowId window) {}
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_DESKTOP_CAPTURE_DESKTOP_CAPTURER_H_