Track sources of proxy settings.

net/proxy/proxy_config_service_linux_unittest.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 "net/proxy/proxy_config_service_linux.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 173 matching lines @@
 
   virtual bool SetUpNotifications(ProxyConfigServiceLinux::Delegate* delegate)
       OVERRIDE {
     return true;
   }
 
   virtual base::SingleThreadTaskRunner* GetNotificationTaskRunner() OVERRIDE {
     return NULL;
   }
 
-  virtual const char* GetDataSource() OVERRIDE {
-    return "test";
+  virtual ProxyConfigSource GetConfigSource() OVERRIDE {
+    return PROXY_CONFIG_SOURCE_TEST;
   }
 
   virtual bool GetString(StringSetting key, std::string* result) OVERRIDE {
     const char* value = strings_table.Get(key);
     if (value) {
       *result = value;
       return true;
     }
     return false;
   }
@@ skipping 1386 matching lines @@
     ProxyConfig config;
     sync_config_getter.SetupAndInitialFetch();
     EXPECT_EQ(ProxyConfigService::CONFIG_VALID,
               sync_config_getter.SyncGetLatestProxyConfig(&config));
     EXPECT_TRUE(config.auto_detect());
     EXPECT_EQ(GURL(), config.pac_url());
   }
 }
 
 }  // namespace net