Add Finch experiment for selectively bypassing proxies.

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 b6ef447d43b22eaa5a6e99971b9776cf4fde580a..3084f5e2c0516d90efa3cb9b996d5a6c5d2489b2 100644
--- a/net/proxy/proxy_service.h
+++ b/net/proxy/proxy_service.h
@@ -96,6 +96,7 @@ class NET_EXPORT ProxyService : public NetworkChangeNotifier::IPAddressObserver,
   // remain alive for the lifetime of this ProxyService.
   ProxyService(ProxyConfigService* config_service,
                ProxyResolver* resolver,
+               NetworkDelegate* network_delegate,

[mmenke, 2014/06/27 18:59:35]

Suggest making this an argument to ResolveProxy instead.  Allows one proxy
service to be reused by multiple URLRequestContexts.

[rcs, 2014/06/28 03:53:38]

Done.

                NetLog* net_log);
 
   virtual ~ProxyService();
@@ -124,6 +125,7 @@ class NET_EXPORT ProxyService : public NetworkChangeNotifier::IPAddressObserver,
   //
   // Profiling information for the request is saved to |net_log| if non-NULL.
   int ResolveProxy(const GURL& url,
+                   int load_flags,
                    ProxyInfo* results,
                    const net::CompletionCallback& callback,
                    PacRequest** pac_request,
@@ -351,7 +353,8 @@ class NET_EXPORT ProxyService : public NetworkChangeNotifier::IPAddressObserver,
   // Returns ERR_IO_PENDING if the request cannot be completed synchronously.
   // Otherwise it fills |result| with the proxy information for |url|.
   // Completing synchronously means we don't need to query ProxyResolver.
-  int TryToCompleteSynchronously(const GURL& url, ProxyInfo* result);
+  int TryToCompleteSynchronously(const GURL& url, int load_flags,
+                                 ProxyInfo* result);
 
   // Cancels all of the requests sent to the ProxyResolver. These will be
   // restarted when calling SetReady().
@@ -444,6 +447,9 @@ class NET_EXPORT ProxyService : public NetworkChangeNotifier::IPAddressObserver,
   // failed to fetch the PAC script) prevents proxy resolution.
   int permanent_error_;
 
+  // Network Delegate manages callbacks to be invoked for upon Proxy Resolution.

[mmenke, 2014/06/27 18:59:35]

nit:  "NetworkDelegate", "proxy resolution"

[rcs, 2014/06/28 03:53:38]

Done.

+  NetworkDelegate* network_delegate_;
+
   // This is the log where any events generated by |init_proxy_resolver_| are
   // sent to.
   NetLog* net_log_;