Introduces window_finder_android.cc

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

Index: chrome/browser/ui/views/tabs/window_finder.h
diff --git a/chrome/browser/ui/views/tabs/window_finder.h b/chrome/browser/ui/views/tabs/window_finder.h
index 91de6c161da5ee8abd0a969dbdc35f4599a248a4..cdb61c1b26e26f9705c9c31014241722bee16248 100644
--- a/chrome/browser/ui/views/tabs/window_finder.h
+++ b/chrome/browser/ui/views/tabs/window_finder.h
@@ -9,18 +9,19 @@
 
 #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);
+    const std::set<gfx::NativeWindow>& ignore,
+    gfx::NativeWindow source);
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TABS_WINDOW_FINDER_H_