Add update available icon in system tray

chrome/common/url_constants.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/common/url_constants.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "build/build_config.h"
@@ skipping 364 matching lines @@
 #if defined(OS_CHROMEOS)
 const char kAccessibilitySubPage[] = "accessibility";
 const char kBluetoothSubPage[] = "bluetoothDevices";
 const char kDateTimeSubPage[] = "dateTime";
 const char kDeprecatedOptionsSearchSubPage[] = "search";
 const char kDisplaySubPage[] = "display";
 const char kInternetSubPage[] = "internet";
 const char kNetworkDetailSubPage[] = "networkDetail";
 const char kPowerSubPage[] = "power";
 const char kStylusSubPage[] = "stylus";
+const char kHelpSubPage[] = "help";

[sky, 2017/05/18 15:50:43]

Please keep sorted. Also, kChromeUIHelpHost has the same value. I take it this
is not used as the host so it's ok to have dups?

[weidongg, 2017/05/18 20:36:35]

Yes, it's not used as the host.

 #else
 const char kCreateProfileSubPage[] = "createProfile";
 const char kManageProfileSubPage[] = "manageProfile";
 #endif
 
 // Extension sub pages.
 const char kExtensionConfigureCommandsSubPage[] = "configureCommands";
 
 const char kExtensionInvalidRequestURL[] = "chrome-extension://invalid/";
 
@@ skipping 434 matching lines @@
 #endif
 
 const char kChooserUsbOverviewURL[] =
     "https://support.google.com/chrome?p=webusb";
 
 #if defined(OS_CHROMEOS)
 const char kEolNotificationURL[] = "https://www.google.com/chromebook/older/";
 #endif
 
 }  // namespace chrome