Introduces window_finder_android.cc

chrome/browser/ui/views/tabs/window_finder.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_TABS_WINDOW_FINDER_H_
 #define CHROME_BROWSER_UI_VIEWS_TABS_WINDOW_FINDER_H_
 
 #include <set>
 
 #include "chrome/browser/ui/host_desktop.h"
 
 namespace aura {
 class Window;
 }
 
 namespace gfx {
 class Point;
 }
 
 // Returns the Window at the specified point, ignoring the windows in |ignore|.
+// TODO(bshe): |window| is currently only used on Android platform. It is used

[sky, 2015/11/09 03:35:03]

You don't actually document what |window| is. I would call it source or context,
and better document what it actually is.

[bshe, 2015/11/09 18:25:36]

Done.

+// to access root window. Other platforms either do not need root window or can
+// access to ash which could access root window directly by calling
+// ::ash::wm::GetRootWindowAt. Remove |window| once we have a way to get root
+// window from |screen_point| on Android. See crbug.com/549735
 gfx::NativeWindow GetLocalProcessWindowAtPoint(
     chrome::HostDesktopType host_desktop_type,
     const gfx::Point& screen_point,
-    const std::set<gfx::NativeWindow>& ignore);
+    const std::set<gfx::NativeWindow>& ignore,
+    gfx::NativeWindow window);
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_WINDOW_FINDER_H_