Add initial version of chrome://popular-sites-internals page

chrome/common/url_constants.h

 // 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.
 
 // Contains constants for known URLs and portions thereof.
 
 #ifndef CHROME_COMMON_URL_CONSTANTS_H_
 #define CHROME_COMMON_URL_CONSTANTS_H_
 
 #include <string>
@@ skipping 232 matching lines @@
 extern const char kChromeUIPrintHost[];
 #endif  // ENABLE_PRINT_PREVIEW
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
 extern const char kChromeUILinuxProxyConfigHost[];
 extern const char kChromeUISandboxHost[];
 #endif
 
 #if defined(OS_ANDROID)
 extern const char kChromeUIContextualSearchPromoHost[];
+extern const char kChromeUIPopularSitesInternalsHost[];
 #endif
 
 #if defined(OS_CHROMEOS)
 extern const char kChromeUIActivationMessageHost[];
 extern const char kChromeUIAppLaunchHost[];
 extern const char kChromeUIBluetoothPairingHost[];
 extern const char kChromeUICertificateManagerHost[];
 extern const char kChromeUIChooseMobileNetworkHost[];
 extern const char kChromeUICryptohomeHost[];
 extern const char kChromeUIDeviceEmulatorHost[];
@@ skipping 290 matching lines @@
 extern const char kEasyUnlockLearnMoreUrl[];
 
 #if defined(OS_WIN) || defined(OS_CHROMEOS)
 extern const char kChromeUIDiscardsHost[];
 extern const char kChromeUIDiscardsURL[];
 #endif
 
 }  // namespace chrome
 
 #endif  // CHROME_COMMON_URL_CONSTANTS_H_