Eliminate HICON leaks caused by creating icons from bitmap image.

chrome/browser/ui/views/tabs/window_finder_win.cc

 // 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.
 
 #include "chrome/browser/ui/views/tabs/window_finder.h"
 
 #include "base/win/scoped_gdi_object.h"
 #include "base/win/windows_version.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/screen.h"
@@ skipping 89 matching lines @@
       // WS_EX_LAYERED windows then there are effectively holes on the screen
       // that the user can't reattach tabs to. So we ignore them. This is a bit
       // problematic in so far as WS_EX_LAYERED windows need not be totally
       // transparent in which case we treat chrome windows as not being obscured
       // when they really are, but this is better than not being able to
       // reattach tabs.
       return false;
     }
 
     // hwnd is at the point. Make sure the point is within the windows region.
-    if (GetWindowRgn(hwnd, tmp_region_.Get()) == ERROR) {
+    if (GetWindowRgn(hwnd, tmp_region_.get()) == ERROR) {
       // There's no region on the window and the window contains the point. Stop
       // iterating.
       return true;
     }
 
     // The region is relative to the window's rect.
-    BOOL is_point_in_region = PtInRegion(tmp_region_.Get(),
-        screen_loc_.x() - r.left, screen_loc_.y() - r.top);
-    tmp_region_ = CreateRectRgn(0, 0, 0, 0);
+    BOOL is_point_in_region = PtInRegion(
+        tmp_region_.get(), screen_loc_.x() - r.left, screen_loc_.y() - r.top);
+    tmp_region_.reset(CreateRectRgn(0, 0, 0, 0));
     // Stop iterating if the region contains the point.
     return !!is_point_in_region;
   }
 
  private:
   TopMostFinder(HWND window,
                 const gfx::Point& screen_loc,
                 const std::set<HWND>& ignore)
       : BaseWindowFinder(ignore),
         target_(window),
@@ skipping 133 matching lines @@
     chrome::HostDesktopType host_desktop_type,
     const gfx::Point& screen_point,
     const std::set<gfx::NativeWindow>& ignore) {
 #if defined(USE_ASH)
   if (host_desktop_type == chrome::HOST_DESKTOP_TYPE_ASH)
     return GetLocalProcessWindowAtPointAsh(screen_point, ignore);
 #endif
   return LocalProcessWindowFinder::GetProcessWindowAtPoint(
           screen_point, RemapIgnoreSet(ignore));
 }