Split ProxyResolver into two interfaces:...

net/proxy/proxy_resolver_mac.h

Index: net/proxy/proxy_resolver_mac.h
===================================================================
--- net/proxy/proxy_resolver_mac.h	(revision 7227)
+++ net/proxy/proxy_resolver_mac.h	(working copy)
@@ -14,12 +14,17 @@
 class ProxyResolverMac : public ProxyResolver {
  public:
   // ProxyResolver methods:
-  virtual int GetProxyConfig(ProxyConfig* config);
   virtual int GetProxyForURL(const GURL& query_url,
                              const GURL& pac_url,
                              ProxyInfo* results);
 };
 
+class ProxyConfigServiceMac : public ProxyConfigService {
+ public:
+  // ProxyConfigService methods:
+  virtual int GetProxyConfig(ProxyConfig* config);
+};
+
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_RESOLVER_MAC_H_