Flash window by pulsing their launcher icon state indicator

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/string_util.h"
 #include "third_party/skia/include/core/SkRegion.h"
 #include "ui/aura/client/activation_client.h"
@@ skipping 585 matching lines @@
 
 void NativeWidgetAura::SetOpacity(unsigned char opacity) {
   window_->layer()->SetOpacity(opacity / 255.0);
 }
 
 void NativeWidgetAura::SetUseDragFrame(bool use_drag_frame) {
   NOTIMPLEMENTED();
 }
 
 void NativeWidgetAura::FlashFrame(bool flash) {
-  NOTIMPLEMENTED();
+  window_->SetProperty(aura::client::kDrawAttentionKey, flash);
 }
 
 bool NativeWidgetAura::IsAccessibleWidget() const {
   // http://crbug.com/102570
   //NOTIMPLEMENTED();
   return false;
 }
 
 void NativeWidgetAura::RunShellDrag(View* view,
                                     const ui::OSExchangeData& data,
@@ skipping 354 matching lines @@
   }
 }
 
 // static
 bool NativeWidgetPrivate::IsMouseButtonDown() {
   return aura::Env::GetInstance()->is_mouse_button_down();
 }
 
 }  // namespace internal
 }  // namespace views