Remove use of deprecated API g_settings_list_schemas

net/proxy/proxy_config_service_linux.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 <errno.h>
 #include <fcntl.h>
 #if defined(USE_GCONF)
 #include <gconf/gconf-client.h>
@@ skipping 529 matching lines @@
         ShutDown();
       } else {
         LOG(WARNING) << "~SettingGetterImplGSettings: leaking gsettings client";
         client_ = NULL;
       }
     }
     DCHECK(!client_);
   }
 
   bool SchemaExists(const char* schema_name) {
-    const gchar* const* schemas = libgio_loader_.g_settings_list_schemas();
+    gchar **schemas = NULL;
+
+    libgio_loader_.g_settings_schema_source_list_schemas(
+        g_settings_schema_source_get_default(), TRUE, &schemas, NULL);
     while (*schemas) {
       if (strcmp(schema_name, static_cast<const char*>(*schemas)) == 0)
         return true;
       schemas++;
     }
     return false;
   }
 
   // LoadAndCheckVersion() must be called *before* Init()!
   bool LoadAndCheckVersion(base::Environment* env);
@@ skipping 1197 matching lines @@
 void ProxyConfigServiceLinux::RemoveObserver(Observer* observer) {
   delegate_->RemoveObserver(observer);
 }
 
 ProxyConfigService::ConfigAvailability
     ProxyConfigServiceLinux::GetLatestProxyConfig(ProxyConfig* config) {
   return delegate_->GetLatestProxyConfig(config);
 }
 
 }  // namespace net