Implement the download arrow animation for Mac

chrome/browser/browser.cc

 // Copyright (c) 2006-2009 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/browser.h"
 
 #include "app/animation.h"
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "base/idle_timer.h"
@@ skipping 2000 matching lines @@
   return window_->GetExtraRenderViewHeight();
 }
 
 void Browser::OnStartDownload(DownloadItem* download) {
   if (!window())
     return;
 
   // GetDownloadShelf creates the download shelf if it was not yet created.
   window()->GetDownloadShelf()->AddDownload(new DownloadItemModel(download));
 
-// TODO(port): port for mac.
-#if defined(OS_WIN) || defined(OS_LINUX)
   // Don't show the animation for "Save file" downloads.
   if (download->total_bytes() > 0) {
     TabContents* current_tab = GetSelectedTabContents();
     // We make this check for the case of minimized windows, unit tests, etc.
     if (platform_util::IsVisible(current_tab->GetNativeView()) &&
         Animation::ShouldRenderRichAnimation())
       DownloadStartedAnimation::Show(current_tab);
   }
-#endif
 }
 
 void Browser::ConfirmAddSearchProvider(const TemplateURL* template_url,
                                        Profile* profile) {
   window()->ConfirmAddSearchProvider(template_url, profile);
 }
 
 void Browser::ShowPageInfo(Profile* profile,
                            const GURL& url,
                            const NavigationEntry::SSLStatus& ssl,
@@ skipping 749 matching lines @@
 ///////////////////////////////////////////////////////////////////////////////
 // BrowserToolbarModel (private):
 
 NavigationController* Browser::BrowserToolbarModel::GetNavigationController() {
   // This |current_tab| can be NULL during the initialization of the
   // toolbar during window creation (i.e. before any tabs have been added
   // to the window).
   TabContents* current_tab = browser_->GetSelectedTabContents();
   return current_tab ? &current_tab->controller() : NULL;
 }