Revert of 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|.
-// On Android, |source| is required to access root window. All other platforms
-// do not use the parameter.
-// TODO(bshe): Remove |source| 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,
-    gfx::NativeWindow source);
+    const std::set<gfx::NativeWindow>& ignore);
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_WINDOW_FINDER_H_