Remove Increment/DecrementKeepAliveCount from AppsClient

extensions/shell/browser/shell_app_window_client.cc

 // Copyright 2014 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 "extensions/shell/browser/shell_app_window_client.h"
 
 #include <vector>
 
 #include "extensions/browser/app_window/app_window.h"
 #include "extensions/shell/browser/desktop_controller.h"
@@ skipping 22 matching lines @@
 NativeAppWindow* ShellAppWindowClient::CreateNativeAppWindow(
       AppWindow* window,
       const AppWindow::CreateParams& params) {
   ShellNativeAppWindow* native_app_window =
       new ShellNativeAppWindow(window, params);
   DesktopController::instance()->AddAppWindow(
       native_app_window->GetNativeWindow());
   return native_app_window;
 }
 
-void ShellAppWindowClient::IncrementKeepAliveCount() {
-  // app_shell runs until the system powers off, so it doesn't need to track
-  // open apps or windows to keep itself alive.
-}
-
-void ShellAppWindowClient::DecrementKeepAliveCount() {
-  // See IncrementKeepAliveCount().
-}
-
 void ShellAppWindowClient::OpenDevToolsWindow(
     content::WebContents* web_contents,
     const base::Closure& callback) {
   NOTIMPLEMENTED();
 }
 
 bool ShellAppWindowClient::IsCurrentChannelOlderThanDev() {
   return false;
 }
 
 }  // namespace extensions