Add three of the six extensions to PAC that Internet Explorer supports. ...

net/proxy/proxy_resolver_js_bindings.h

Index: net/proxy/proxy_resolver_js_bindings.h
===================================================================
--- net/proxy/proxy_resolver_js_bindings.h	(revision 29974)
+++ net/proxy/proxy_resolver_js_bindings.h	(working copy)
@@ -24,9 +24,21 @@
   // Handler for "myIpAddress()". Returns empty string on failure.
   virtual std::string MyIpAddress() = 0;
 
+  // Handler for "myIpAddressEx()". Returns empty string on failure.
+  //
+  // This is a Microsoft extension to PAC for IPv6, see:
+  // http://blogs.msdn.com/wndp/articles/IPV6_PAC_Extensions_v0_9.aspx
+  virtual std::string MyIpAddressEx() = 0;
+
   // Handler for "dnsResolve(host)". Returns empty string on failure.
   virtual std::string DnsResolve(const std::string& host) = 0;
 
+  // Handler for "dnsResolveEx(host)". Returns empty string on failure.
+  //
+  // This is a Microsoft extension to PAC for IPv6, see:
+  // http://blogs.msdn.com/wndp/articles/IPV6_PAC_Extensions_v0_9.aspx
+  virtual std::string DnsResolveEx(const std::string& host) = 0;
+
   // Handler for when an error is encountered. |line_number| may be -1
   // if a line number is not applicable to this error.
   virtual void OnError(int line_number, const std::string& error) = 0;