Add tooltip text for chrome shortcut

chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.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 "chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.h"
 
 #include "ash/launcher/launcher_model.h"
 #include "ash/launcher/launcher_types.h"
 #include "ash/shell.h"
 #include "ash/wm/window_util.h"
@@ skipping 316 matching lines @@
     ++i;
     if (current->second.app_id == app_id && IsPinned(current->first))
       Unpin(current->first);
   }
 }
 
 void ChromeLauncherDelegate::CreateNewTab() {
   Browser *last_browser = BrowserList::FindTabbedBrowser(
       GetProfileForNewWindows(), true);
 
-  if (last_browser) {
-    last_browser->NewTab();
-    aura::Window* window = last_browser->window()->GetNativeHandle();
-    window->Show();
-    ash::wm::ActivateWindow(window);
-  } else {
-    Browser::NewEmptyWindow(GetProfileForNewWindows());
+  if (!last_browser) {
+    CreateNewWindow();
+    return;
   }
+
+  last_browser->NewTab();
+  aura::Window* window = last_browser->window()->GetNativeHandle();
+  window->Show();
+  ash::wm::ActivateWindow(window);
+}
+
+void ChromeLauncherDelegate::CreateNewWindow() {
+  printf("ChromeLauncherDelegate::CreateNewWindow\n");
+  Browser::NewEmptyWindow(GetProfileForNewWindows());
 }
 
 void ChromeLauncherDelegate::ItemClicked(const ash::LauncherItem& item) {
   DCHECK(id_to_item_map_.find(item.id) != id_to_item_map_.end());
   Open(item.id);
 }
 
 int ChromeLauncherDelegate::GetBrowserShortcutResourceId() {
   return IDR_PRODUCT_LOGO_32;
 }
@@ skipping 102 matching lines @@
   }
 }
 
 void ChromeLauncherDelegate::SetAppIconLoaderForTest(AppIconLoader* loader) {
   app_icon_loader_.reset(loader);
 }
 
 Profile* ChromeLauncherDelegate::GetProfileForNewWindows() {
   return ProfileManager::GetDefaultProfileOrOffTheRecord();
 }