commit 94e710d82e931c9aeb0df55c94fa3f5f854bc20d
author Zijie He <zijiehe@chromium.org> Tue Sep 05 22:15:59 2017
committer Commit Bot <commit-bot@chromium.org> Tue Sep 05 22:50:04 2017
tree bac8b5c58c617d720901d0717069b7aff6d5b9e0
parent 02dcb656a7d745d75b4fae4ae466f268c36d2f9d

Add a comment to explain the coordinate of GetWindowRectInVirtualScreen()

CroppingWindowCapturer::GetWindowRectInVirtualScreen() expects to return a
rectangle in full desktop coordinate.

Bug: webrtc:7950
Change-Id: Id1b5de4d655cfc3f375434a696c77029c684880b
Reviewed-on: https://chromium-review.googlesource.com/651706
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Commit-Queue: Zijie He <zijiehe@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#19700}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: f75daa8cb95ed811eb09dc8ed99ddc34605b1d93

modules/desktop_capture/cropping_window_capturer.h

diff --git a/modules/desktop_capture/cropping_window_capturer.h b/modules/desktop_capture/cropping_window_capturer.h
index 5b5a41d..b8b2751 100644
--- a/modules/desktop_capture/cropping_window_capturer.h
+++ b/modules/desktop_capture/cropping_window_capturer.h
@@ -55,7 +55,9 @@
   virtual bool ShouldUseScreenCapturer() = 0;
 
   // Returns the window area relative to the top left of the virtual screen
-  // within the bounds of the virtual screen.
+  // within the bounds of the virtual screen. This function should return the
+  // DesktopRect in full desktop coordinates, i.e. the top-left monitor starts
+  // from (0, 0).
   virtual DesktopRect GetWindowRectInVirtualScreen() = 0;
 
   WindowId selected_window() const { return selected_window_; }