[WebUI] Add a chrome://prefs-internals page

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 212 matching lines @@
 const char kChromeUIMdSettingsHost[] = "md-settings";
 const char kChromeUINaClHost[] = "nacl";
 const char kChromeUINetExportHost[] = "net-export";
 const char kChromeUINetInternalsHost[] = "net-internals";
 const char kChromeUINewTabHost[] = "newtab";
 const char kChromeUINTPTilesInternalsHost[] = "ntp-tiles-internals";
 const char kChromeUIOmniboxHost[] = "omnibox";
 const char kChromeUIPasswordManagerInternalsHost[] =
     "password-manager-internals";
 const char kChromeUIPhysicalWebHost[] = "physical-web";
+const char kChromeUIPrefsInternalsHost[] = "prefs-internals";
 const char kChromeUIComponentsHost[] = "components";
 const char kChromeUIPolicyHost[] = "policy";
 const char kChromeUIMdUserManagerHost[] = "md-user-manager";
 const char kChromeUIPredictorsHost[] = "predictors";
 const char kChromeUIProfilerHost[] = "profiler";
 const char kChromeUIQuotaInternalsHost[] = "quota-internals";
 const char kChromeUIQuitHost[] = "quit";
 const char kChromeUIRestartHost[] = "restart";
 const char kChromeUISettingsHost[] = "settings";
 const char kChromeUISettingsFrameHost[] = "settings-frame";
@@ skipping 580 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