Fix tab dragging in unity2d

chrome/browser/ui/gtk/tabs/dock_info_gtk.cc

Index: chrome/browser/ui/gtk/tabs/dock_info_gtk.cc
diff --git a/chrome/browser/ui/gtk/tabs/dock_info_gtk.cc b/chrome/browser/ui/gtk/tabs/dock_info_gtk.cc
index bd528a470d83751e1b81961b8b0ae37e9861f001..6a507cd8890fdb00e130d72c21ad00deaca5c0ce 100644
--- a/chrome/browser/ui/gtk/tabs/dock_info_gtk.cc
+++ b/chrome/browser/ui/gtk/tabs/dock_info_gtk.cc
@@ -81,14 +81,8 @@ class TopMostFinder : public BaseWindowFinder {
       return false;
     }
 
-    gfx::Rect rect;
-    if (ui::GetWindowRect(window, &rect) && rect.Contains(screen_loc_)) {
-      // At this point we haven't found our target window, so this window is
-      // higher in the z-order than the target window.  If this window contains
-      // the point, then we can stop the search now because this window is
-      // obscuring the target window at this point.
+    if (ui::WindowContainsPoint(window, screen_loc_))
       return true;
-    }
 
     return false;
   }
@@ -149,8 +143,7 @@ class LocalProcessWindowFinder : public BaseWindowFinder {
     if (!ui::IsWindowVisible(window))
       return false;
 
-    gfx::Rect rect;
-    if (ui::GetWindowRect(window, &rect) && rect.Contains(screen_loc_)) {
+    if (ui::WindowContainsPoint(window, screen_loc_)) {
       result_ = window;
       return true;
     }