URLs with repeated domain names requesting tracking information

chrome/browser/geolocation/geolocation_settings_state.cc

 // Copyright (c) 2010 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/geolocation/geolocation_settings_state.h"
 
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/geolocation/geolocation_content_settings_map.h"
 #include "chrome/browser/pref_service.h"
 #include "chrome/browser/profile.h"
@@ skipping 32 matching lines @@
     state_map_.clear();
 }
 
 void GeolocationSettingsState::GetDetailedInfo(
     FormattedHostsPerState* formatted_hosts_per_state,
     unsigned int* tab_state_flags) const {
   DCHECK(tab_state_flags);
   DCHECK(embedder_url_.is_valid());
   const ContentSetting default_setting =
       profile_->GetGeolocationContentSettingsMap()->GetDefaultContentSetting();
+  std::set<std::string> formatted_hosts;
+  std::set<std::string> repeated_formatted_hosts;
+
+  // Build a set of repeated formatted hosts
+  for (StateMap::const_iterator i(state_map_.begin());
+       i != state_map_.end(); ++i) {
+    std::string formatted_host = GURLToFormattedHost(i->first);
+    if (!formatted_hosts.insert(formatted_host).second) {
+      repeated_formatted_hosts.insert(formatted_host);
+    }
+  }
+
   for (StateMap::const_iterator i(state_map_.begin());
        i != state_map_.end(); ++i) {
     if (i->second == CONTENT_SETTING_ALLOW)
       *tab_state_flags |= TABSTATE_HAS_ANY_ALLOWED;
     if (formatted_hosts_per_state) {
-      (*formatted_hosts_per_state)[i->second].insert(
-          GURLToFormattedHost(i->first));
+      std::string formatted_host = GURLToFormattedHost(i->first);
+      std::string final_formatted_host =
+          repeated_formatted_hosts.find(formatted_host) ==
+          repeated_formatted_hosts.end() ?
+          formatted_host :
+          i->first.spec();
+      (*formatted_hosts_per_state)[i->second].insert(final_formatted_host);
     }
 
     const ContentSetting saved_setting =
         profile_->GetGeolocationContentSettingsMap()->GetContentSetting(
             i->first, embedder_url_);
     if (saved_setting != default_setting)
       *tab_state_flags |= TABSTATE_HAS_EXCEPTION;
     if (saved_setting != i->second)
       *tab_state_flags |= TABSTATE_HAS_CHANGED;
     if (saved_setting != CONTENT_SETTING_ASK)
       *tab_state_flags |= TABSTATE_HAS_ANY_ICON;
   }
 }
 
 std::string GeolocationSettingsState::GURLToFormattedHost(
     const GURL& url) const {
   std::wstring display_host_wide;
   net::AppendFormattedHost(
       url, UTF8ToWide(profile_->GetPrefs()->GetString(prefs::kAcceptLanguages)),
       &display_host_wide, NULL, NULL);
   return WideToUTF8(display_host_wide);
 }