Convert wallpaper picker to v2 app

chrome/browser/browser_about_handler.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/browser_about_handler.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 63 matching lines @@
   chrome::kChromeUIDriveInternalsHost,
   chrome::kChromeUIImageBurnerHost,
   chrome::kChromeUIKeyboardOverlayHost,
   chrome::kChromeUILoginHost,
   chrome::kChromeUINetworkHost,
   chrome::kChromeUIOobeHost,
   chrome::kChromeUIOSCreditsHost,
   chrome::kChromeUIProxySettingsHost,
   chrome::kChromeUISystemInfoHost,
   chrome::kChromeUITaskManagerHost,
-  chrome::kChromeUIWallpaperHost,
 #endif
 #if !defined(DISABLE_NACL)
   chrome::kChromeUINaClHost,
 #endif
 #if defined(ENABLE_CONFIGURATION_POLICY)
   chrome::kChromeUIPolicyHost,
 #endif
 #if defined(ENABLE_EXTENSIONS)
   chrome::kChromeUIExtensionsHost,
 #endif
@@ skipping 88 matching lines @@
 #endif  // OFFICIAL_BUILD
 
   return false;
 }
 
 std::vector<std::string> ChromePaths() {
   std::vector<std::string> paths(kPaths, kPaths + arraysize(kPaths));
   std::sort(paths.begin(), paths.end());
   return paths;
 }