Remove DesktopRegion parameter from DesktopCapturer::Capture

BUG=https://bugs.chromium.org/p/webrtc/issues/detail?id=6513

Review-Url: https://codereview.webrtc.org/2433503002
Cr-Commit-Position: refs/heads/master@{#14676}

webrtc/modules/desktop_capture/cropping_window_capturer.cc

@@ -79,7 +79,7 @@ void CroppingWindowCapturer::OnCaptureResult(
     std::unique_ptr<DesktopFrame> screen_frame) {
   if (!ShouldUseScreenCapturer()) {
     LOG(LS_INFO) << "Window no longer on top when ScreenCapturer finishes";
-    window_capturer_->Capture(DesktopRegion());
+    window_capturer_->CaptureFrame();
     return;
   }
 

webrtc/modules/desktop_capture/desktop_capturer.h

@@ -31,11 +31,11 @@ class DesktopCapturer {
     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
@@ -61,17 +61,15 @@ class DesktopCapturer {
 
   // 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

webrtc/modules/desktop_capture/screen_capturer_mac_unittest.cc

@@ -93,10 +93,10 @@ TEST_F(ScreenCapturerMacTest, Capture) {
   capturer_->Start(&callback_);
 
   // Check that we get an initial full-screen updated.
-  capturer_->Capture(DesktopRegion());
+  capturer_->CaptureFrame();
 
   // Check that subsequent dirty rects are propagated correctly.
-  capturer_->Capture(DesktopRegion());
+  capturer_->CaptureFrame();
 }
 
 }  // namespace webrtc

webrtc/modules/desktop_capture/screen_capturer_mock_objects.h

@@ -19,15 +19,10 @@ namespace webrtc {
 
 class MockScreenCapturer : public ScreenCapturer {
  public:
-  MockScreenCapturer() {
-    ON_CALL(*this, Capture(testing::_))
-        .WillByDefault(testing::WithoutArgs(testing::Invoke(
-            this, &MockScreenCapturer::CaptureFrame)));
-  }
+  MockScreenCapturer() {}
   virtual ~MockScreenCapturer() {}
 
   MOCK_METHOD1(Start, void(Callback* callback));
-  MOCK_METHOD1(Capture, void(const DesktopRegion& region));
   MOCK_METHOD0(CaptureFrame, void(void));
   MOCK_METHOD1(GetScreenList, bool(ScreenList* screens));
   MOCK_METHOD1(SelectScreen, bool(ScreenId id));

webrtc/modules/desktop_capture/window_capturer_unittest.cc

@@ -70,7 +70,7 @@ TEST_F(WindowCapturerTest, Capture) {
        it != windows.end(); ++it) {
     frame_.reset();
     if (capturer_->SelectWindow(it->id)) {
-      capturer_->Capture(DesktopRegion());
+      capturer_->CaptureFrame();
     }
 
     // If we failed to capture a window make sure it no longer exists.