Remove LauncherItemController::Launch, cleanup.

chrome/browser/ui/ash/launcher/browser_shortcut_launcher_item_controller.cc

 // Copyright (c) 2013 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/ash/launcher/browser_shortcut_launcher_item_controller.h"
 
 #include <vector>
 
 #include "ash/common/shelf/shelf_delegate.h"
 #include "ash/common/shelf/shelf_model.h"
@@ skipping 46 matching lines @@
     return true;
   return false;
 }
 
 }  // namespace
 
 BrowserShortcutLauncherItemController::BrowserShortcutLauncherItemController(
     ChromeLauncherController* launcher_controller,
     ash::ShelfModel* shelf_model)
     : LauncherItemController(extension_misc::kChromeAppId,
-                             "",
+                             std::string(),
                              launcher_controller),
       shelf_model_(shelf_model) {}
 
 BrowserShortcutLauncherItemController::
-    ~BrowserShortcutLauncherItemController() {
-}
+    ~BrowserShortcutLauncherItemController() {}
 
 void BrowserShortcutLauncherItemController::UpdateBrowserItemState() {
   // Determine the new browser's active state and change if necessary.
   int browser_index =
       shelf_model_->GetItemIndexForType(ash::TYPE_BROWSER_SHORTCUT);
   DCHECK_GE(browser_index, 0);
   ash::ShelfItem browser_item = shelf_model_->items()[browser_index];
   ash::ShelfItemStatus browser_status = ash::STATUS_CLOSED;
 
   aura::Window* window = ash::wm::GetActiveWindow();
@@ skipping 38 matching lines @@
   if (!browser || !IsBrowserFromActiveUser(browser) ||
       IsSettingsBrowser(browser))
     return;
 
   ash::WmWindow::Get(browser->window()->GetNativeWindow())
       ->SetIntProperty(
           ash::WmWindowProperty::SHELF_ID,
           launcher_controller()->GetShelfIDForWebContents(web_contents));
 }
 
-void BrowserShortcutLauncherItemController::Launch(ash::LaunchSource source,
-                                                   int event_flags) {
-}
-
 ash::ShelfItemDelegate::PerformedAction
 BrowserShortcutLauncherItemController::Activate(ash::LaunchSource source) {
   Browser* last_browser =
       chrome::FindTabbedBrowser(launcher_controller()->profile(), true);
 
   if (!last_browser) {
     chrome::NewEmptyWindow(launcher_controller()->profile());
     return kNewWindowCreated;
   }
 
@@ skipping 165 matching lines @@
         !browser->window()->IsMinimized()) {
       continue;
     }
     if (!IsBrowserRepresentedInBrowserList(browser) &&
         !browser->is_type_tabbed())
       continue;
     active_browsers.push_back(browser);
   }
   return active_browsers;
 }