Track sources of proxy settings.

net/proxy/proxy_config_service_win.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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 "net/proxy/proxy_config_service_win.h"
 
 #include <windows.h>
 #include <winhttp.h>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 139 matching lines @@
   // Have the PollingProxyConfigService test for changes.
   CheckForChangesNow();
 }
 
 // static
 void ProxyConfigServiceWin::GetCurrentProxyConfig(ProxyConfig* config) {
   WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ie_config = {0};
   if (!WinHttpGetIEProxyConfigForCurrentUser(&ie_config)) {
     LOG(ERROR) << "WinHttpGetIEProxyConfigForCurrentUser failed: " <<
         GetLastError();
     *config = ProxyConfig::CreateDirect();

[eroman, 2012/05/18 03:58:56]

In this case the "source" will be Unknown. I wander if we want a separate source
to indicate like SOURCE_SYSTEM_FAILED.

[asanka, 2012/05/18 16:27:01]

I added a source named SYSTEM_FAILED.

Based on http://code.google.com/p/chromium/issues/detail?id=118385#c14 , it
looks like this call would succeed even in the absence of connection specific
settings. So I think this specific failure would be quite rare.

     return;
   }
   SetFromIEConfig(config, ie_config);
   FreeIEConfig(&ie_config);
 }
 
 // static
 void ProxyConfigServiceWin::SetFromIEConfig(
     ProxyConfig* config,
     const WINHTTP_CURRENT_USER_IE_PROXY_CONFIG& ie_config) {
   if (ie_config.fAutoDetect)
     config->set_auto_detect(true);
   if (ie_config.lpszProxy) {
     // lpszProxy may be a single proxy, or a proxy per scheme. The format
     // is compatible with ProxyConfig::ProxyRules's string format.
     config->proxy_rules().ParseFromString(WideToASCII(ie_config.lpszProxy));
   }
   if (ie_config.lpszProxyBypass) {
     std::string proxy_bypass = WideToASCII(ie_config.lpszProxyBypass);
 
     StringTokenizer proxy_server_bypass_list(proxy_bypass, ";, \t\n\r");
     while (proxy_server_bypass_list.GetNext()) {
       std::string bypass_url_domain = proxy_server_bypass_list.token();
       config->proxy_rules().bypass_rules.AddRuleFromString(bypass_url_domain);
     }
   }
   if (ie_config.lpszAutoConfigUrl)
     config->set_pac_url(GURL(ie_config.lpszAutoConfigUrl));
+  config->set_source(PROXY_CONFIG_SOURCE_SYSTEM);
 }
 
 }  // namespace net