Update the window labels if they change in overview mode.

ui/views/widget/native_widget_aura.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 "ui/views/widget/native_widget_aura.h"
 
 #include "base/bind.h"
 #include "base/strings/string_util.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/aura_constants.h"
@@ skipping 338 matching lines @@
   *bounds = GetRestoredBounds();
   *show_state = window_ ? window_->GetProperty(aura::client::kShowStateKey) :
       ui::SHOW_STATE_DEFAULT;
 }
 
 bool NativeWidgetAura::SetWindowTitle(const base::string16& title) {
   if (!window_)
     return false;
   if (window_->title() == title)
     return false;
-  window_->set_title(title);
+  window_->SetTitle(title);
   return true;
 }
 
 void NativeWidgetAura::SetWindowIcons(const gfx::ImageSkia& window_icon,
                                       const gfx::ImageSkia& app_icon) {
   // Aura doesn't have window icons.
 }
 
 void NativeWidgetAura::InitModalType(ui::ModalType modal_type) {
   if (modal_type != ui::MODAL_TYPE_NONE)
@@ skipping 786 matching lines @@
   l10n_util::AdjustUIFont(&(ncm.lfCaptionFont));
   base::win::ScopedHFONT caption_font(CreateFontIndirect(&(ncm.lfCaptionFont)));
   return gfx::FontList(gfx::Font(caption_font));
 #else
   return gfx::FontList();
 #endif
 }
 
 }  // namespace internal
 }  // namespace views