Changes around the launcher so that it only shows the most recently

chrome/browser/ui/views/aura/launcher_icon_updater.cc

 // Copyright (c) 2011 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/aura/launcher_icon_updater.h"
 
 #include <algorithm>
 
 #include "chrome/browser/extensions/extension_tab_helper.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "grit/ui_resources.h"
 #include "ui/aura_shell/launcher/launcher_model.h"
 #include "ui/aura/window.h"
 #include "ui/base/resource/resource_bundle.h"
 
 // Max number of tabs we'll send icons over for.
-const int kMaxCount = 2;
+const int kMaxCount = 3;
 
 LauncherIconUpdater::LauncherIconUpdater(
     TabStripModel* tab_model,
     aura_shell::LauncherModel* launcher_model,
     aura::Window* window)
     : tab_model_(tab_model),
       launcher_model_(launcher_model),
       window_(window) {
   tab_model->AddObserver(this);
   if (tab_model->GetActiveTabContents())
@@ skipping 82 matching lines @@
     // TODO: needs to be updated for apps.
     images[i].image = tabs_[i]->favicon_tab_helper()->GetFavicon();
     if (images[i].image.empty()) {
       images[i].image = *ResourceBundle::GetSharedInstance().GetBitmapNamed(
           IDR_DEFAULT_FAVICON);
     }
     images[i].user_data = tabs_[i];
   }
   launcher_model_->SetTabbedImages(item_index, images);
 }