Remove stl_util's STLDeleteContainerPairSecondPointers from extensions.

extensions/browser/api/vpn_provider/vpn_service.h

Index: extensions/browser/api/vpn_provider/vpn_service.h
diff --git a/extensions/browser/api/vpn_provider/vpn_service.h b/extensions/browser/api/vpn_provider/vpn_service.h
index 664c0cc538dfe5b06d76494ae89e7f1a41e060c2..7deaaa9e83f32dec549fcd47acc48589124d6987 100644
--- a/extensions/browser/api/vpn_provider/vpn_service.h
+++ b/extensions/browser/api/vpn_provider/vpn_service.h
@@ -173,6 +173,8 @@ class VpnService : public KeyedService,
   class VpnServiceProxyImpl;
 
   using StringToConfigurationMap = std::map<std::string, VpnConfiguration*>;
+  using StringToOwnedConfigurationMap =
+      std::map<std::string, std::unique_ptr<VpnConfiguration>>;
 
   // Callback used to indicate that configuration was successfully created.
   void OnCreateConfigurationSuccess(const SuccessCallback& callback,
@@ -254,7 +256,7 @@ class VpnService : public KeyedService,
   VpnConfiguration* active_configuration_;
 
   // Key map owns the VpnConfigurations.

[Devlin, 2016/09/16 20:23:19]

This comment should be unnecessary now.

[Avi (use Gerrit), 2016/09/16 20:41:45]

Done.

-  StringToConfigurationMap key_to_configuration_map_;
+  StringToOwnedConfigurationMap key_to_configuration_map_;
 
   // Service path does not own the VpnConfigurations.
   StringToConfigurationMap service_path_to_configuration_map_;