Adds support for the DHCP portion of the WPAD (proxy auto-discovery) protocol.

net/proxy/proxy_service.h

Index: net/proxy/proxy_service.h
diff --git a/net/proxy/proxy_service.h b/net/proxy/proxy_service.h
index 814647098d6d145f860ef50e68382bd9cd397156..401b635b79262e6388cbb5ade312ef03f2d36d9d 100644
--- a/net/proxy/proxy_service.h
+++ b/net/proxy/proxy_service.h
@@ -28,7 +28,7 @@ namespace net {
 class HostResolver;
 class InitProxyResolver;
 class ProxyResolver;
-class ProxyScriptFetcher;
+class URLProxyScriptFetcher;
 class URLRequestContext;
 
 // This class can be used to resolve the proxy server to use when loading a
@@ -99,8 +99,8 @@ class ProxyService : public base::RefCounted<ProxyService>,
   // Sets the ProxyScriptFetcher dependency. This is needed if the ProxyResolver
   // is of type ProxyResolverWithoutFetch. ProxyService takes ownership of
   // |proxy_script_fetcher|.
-  void SetProxyScriptFetcher(ProxyScriptFetcher* proxy_script_fetcher);
-  ProxyScriptFetcher* GetProxyScriptFetcher() const;
+  void SetProxyScriptFetcher(URLProxyScriptFetcher* proxy_script_fetcher);
+  URLProxyScriptFetcher* GetProxyScriptFetcher() const;
 
   // Tells this ProxyService to start using a new ProxyConfigService to
   // retrieve its ProxyConfig from. The new ProxyConfigService will immediately
@@ -171,7 +171,7 @@ class ProxyService : public base::RefCounted<ProxyService>,
   static ProxyService* CreateUsingV8ProxyResolver(
       ProxyConfigService* proxy_config_service,
       size_t num_pac_threads,
-      ProxyScriptFetcher* proxy_script_fetcher,
+      URLProxyScriptFetcher* proxy_script_fetcher,
       HostResolver* host_resolver,
       NetLog* net_log);
 
@@ -317,7 +317,7 @@ class ProxyService : public base::RefCounted<ProxyService>,
   // The fetcher to use when downloading PAC scripts for the ProxyResolver.
   // This dependency can be NULL if our ProxyResolver has no need for
   // external PAC script fetching.
-  scoped_ptr<ProxyScriptFetcher> proxy_script_fetcher_;
+  scoped_ptr<URLProxyScriptFetcher> proxy_script_fetcher_;
 
   // Callback for when |init_proxy_resolver_| is done.
   CompletionCallbackImpl<ProxyService> init_proxy_resolver_callback_;