MD History: re-use history host constant from content/ instead of duplicating to chrome/

chrome/common/extensions/chrome_manifest_url_handlers.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/extensions/chrome_manifest_url_handlers.h"
 
 #include <memory>
 
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/url_constants.h"
+#include "content/public/common/url_constants.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/file_util.h"
 #include "extensions/common/manifest.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/manifest_handlers/permissions_parser.h"
 #include "extensions/common/manifest_handlers/shared_module_info.h"
 #include "extensions/common/manifest_url_handlers.h"
 #include "extensions/common/permissions/api_permission.h"
 
 #if defined(USE_AURA)
@@ skipping 73 matching lines @@
   }
   std::unique_ptr<URLOverrides> url_overrides(new URLOverrides);
   // Validate that the overrides are all strings
   for (base::DictionaryValue::Iterator iter(*overrides); !iter.IsAtEnd();
        iter.Advance()) {
     const std::string& page = iter.key();
     std::string val;
     // Restrict override pages to a list of supported URLs.
     bool is_allowed_host = page == chrome::kChromeUINewTabHost ||
                            page == chrome::kChromeUIBookmarksHost ||
-                           page == chrome::kChromeUIHistoryHost;
+                           page == content::kChromeUIHistoryHost;
 #if defined(OS_CHROMEOS)
     is_allowed_host = is_allowed_host ||
                       page == chrome::kChromeUIActivationMessageHost ||
                       page == keyboard::kKeyboardHost;
 #endif
 
     if (!is_allowed_host || !iter.value().GetAsString(&val)) {
       *error = base::ASCIIToUTF16(errors::kInvalidChromeURLOverrides);
       return false;
     }
@@ skipping 46 matching lines @@
     }
   }
   return true;
 }
 
 const std::vector<std::string> URLOverridesHandler::Keys() const {
   return SingleKey(keys::kChromeURLOverrides);
 }
 
 }  // namespace extensions