Fix tab dragging in unity2d

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

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/tabs/dock_info.h"
 
 #include <gtk/gtk.h>
 
 #include "base/logging.h"
 #include "chrome/browser/ui/browser_list.h"
@@ skipping 63 matching lines @@
       // Window is topmost, stop iterating.
       is_top_most_ = true;
       return true;
     }
 
     if (!ui::IsWindowVisible(window)) {
       // The window isn't visible, keep iterating.
       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;
   }
 
  private:
   TopMostFinder(XID window,
                 const gfx::Point& screen_loc,
                 const std::set<GtkWidget*>& ignore)
     : BaseWindowFinder(ignore),
       target_(window),
@@ skipping 40 matching lines @@
     if (BaseWindowFinder::ShouldIgnoreWindow(window))
       return false;
 
     // Check if this window is in our process.
     if (!BrowserWindowGtk::GetBrowserWindowForXID(window))
       return false;
 
     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;
     }
 
     return false;
   }
 
  private:
   LocalProcessWindowFinder(const gfx::Point& screen_loc,
                            const std::set<GtkWidget*>& ignore)
@@ skipping 42 matching lines @@
 
 void DockInfo::SizeOtherWindowTo(const gfx::Rect& bounds) const {
   gtk_window_move(window(), bounds.x(), bounds.y());
   gtk_window_resize(window(), bounds.width(), bounds.height());
 }
 
 // static
 int DockInfo::GetHotSpotDeltaY() {
   return TabGtk::GetMinimumUnselectedSize().height() - 1;
 }