Make proxy settings one atomic dictionary in the PrefStores such that modifications are atomic.

chrome/browser/prefs/command_line_pref_store.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/prefs/command_line_pref_store.h"
 
 #include "app/app_switches.h"
 #include "base/logging.h"
 #include "base/values.h"
 #include "chrome/browser/prefs/proxy_prefs.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "ui/base/ui_base_switches.h"
 
 const CommandLinePrefStore::StringSwitchToPreferenceMapEntry
     CommandLinePrefStore::string_switch_map_[] = {
       { switches::kLang, prefs::kApplicationLocale },
-      { switches::kProxyServer, prefs::kProxyServer },
-      { switches::kProxyPacUrl, prefs::kProxyPacUrl },
-      { switches::kProxyBypassList, prefs::kProxyBypassList },
       { switches::kAuthSchemes, prefs::kAuthSchemes },
       { switches::kAuthServerWhitelist, prefs::kAuthServerWhitelist },
       { switches::kAuthNegotiateDelegateWhitelist,
           prefs::kAuthNegotiateDelegateWhitelist },
       { switches::kGSSAPILibraryName, prefs::kGSSAPILibraryName },
 };
 
 const CommandLinePrefStore::BooleanSwitchToPreferenceMapEntry
     CommandLinePrefStore::boolean_switch_map_[] = {
       { switches::kDisableAuthNegotiateCnameLookup,
@@ skipping 39 matching lines @@
        command_line_->HasSwitch(switches::kProxyBypassList))) {
     LOG(WARNING) << "Additional command-line proxy switches specified when --"
                  << switches::kNoProxyServer << " was also specified.";
     return false;
   }
   return true;
 }
 
 void CommandLinePrefStore::ApplyProxyMode() {
   if (command_line_->HasSwitch(switches::kNoProxyServer)) {
-    SetValue(prefs::kProxyMode,
-             Value::CreateIntegerValue(ProxyPrefs::MODE_DIRECT));
+    SetValue(prefs::kProxy,
+             ProxyPrefsDictionary::CreateDirect());
   } else if (command_line_->HasSwitch(switches::kProxyPacUrl)) {
-    SetValue(prefs::kProxyMode,
-             Value::CreateIntegerValue(ProxyPrefs::MODE_PAC_SCRIPT));
+    std::string pac_script_url =
+        command_line_->GetSwitchValueASCII(switches::kProxyPacUrl);
+    SetValue(prefs::kProxy,
+             ProxyPrefsDictionary::CreatePacScript(pac_script_url));
   } else if (command_line_->HasSwitch(switches::kProxyAutoDetect)) {
-    SetValue(prefs::kProxyMode,
-             Value::CreateIntegerValue(ProxyPrefs::MODE_AUTO_DETECT));
+    SetValue(prefs::kProxy,
+             ProxyPrefsDictionary::CreateAutoDetect());
   } else if (command_line_->HasSwitch(switches::kProxyServer)) {
-    SetValue(prefs::kProxyMode,
-             Value::CreateIntegerValue(ProxyPrefs::MODE_FIXED_SERVERS));
+    std::string proxy_server =
+        command_line_->GetSwitchValueASCII(switches::kProxyServer);
+    std::string bypass_list =
+        command_line_->GetSwitchValueASCII(switches::kProxyBypassList);
+    SetValue(prefs::kProxy,
+             ProxyPrefsDictionary::CreateFixedServers(proxy_server,
+                                                      bypass_list));
   }
 }