Remove unused LauncherItemController::IsVisible()

chrome/browser/ui/ash/launcher/app_shortcut_launcher_item_controller.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/ash/launcher/app_shortcut_launcher_item_controller.h"
 
 #include <stddef.h>
 
 #include "ash/wm/window_util.h"
 #include "base/memory/ptr_util.h"
@@ skipping 78 matching lines @@
   // Some unit tests have no real extension.
   if (extension) {
     set_refocus_url(GURL(
         extensions::AppLaunchInfo::GetLaunchWebURL(extension).spec() + "*"));
   }
 }
 
 AppShortcutLauncherItemController::~AppShortcutLauncherItemController() {
 }
 
-bool AppShortcutLauncherItemController::IsVisible() const {
-  // Return true if any browser window associated with the app is visible.
-  std::vector<content::WebContents*> content =
-      chrome_launcher_controller_->GetV1ApplicationsFromAppId(app_id());
-  for (size_t i = 0; i < content.size(); i++) {
-    Browser* browser = chrome::FindBrowserWithWebContents(content[i]);
-    if (browser && browser->window()->GetNativeWindow()->IsVisible())
-      return true;
-  }
-  return false;
-}
-
 void AppShortcutLauncherItemController::Launch(ash::LaunchSource source,
                                                int event_flags) {
   // Launching an app replaces shortcut item controller to app controller. As
   // result app_id_, launch_id_ are deleted during this call. Use local copies
   // to prevent crash condition.
   launcher_controller()->LaunchAppWithLaunchId(
       std::string(app_id()), std::string(launch_id()), source, event_flags);
 }
 
 ash::ShelfItemDelegate::PerformedAction
@@ skipping 241 matching lines @@
 
 bool AppShortcutLauncherItemController::AllowNextLaunchAttempt() {
   if (last_launch_attempt_.is_null() ||
       last_launch_attempt_ + base::TimeDelta::FromMilliseconds(
           kClickSuppressionInMS) < base::Time::Now()) {
     last_launch_attempt_ = base::Time::Now();
     return true;
   }
   return false;
 }