Add new text for indicating we are resolving hosts during proxy resolution.

net/proxy/sync_host_resolver_bridge_unittest.cc

Index: net/proxy/sync_host_resolver_bridge_unittest.cc
diff --git a/net/proxy/sync_host_resolver_bridge_unittest.cc b/net/proxy/sync_host_resolver_bridge_unittest.cc
index 4600ab3236e69f30b0c0a7131abc4ba21ca1efa6..0eda0f2cc1fa061e3266eec094564c6b1deb5d6a 100644
--- a/net/proxy/sync_host_resolver_bridge_unittest.cc
+++ b/net/proxy/sync_host_resolver_bridge_unittest.cc
@@ -111,6 +111,11 @@ class SyncProxyResolver : public ProxyResolver {
     NOTREACHED();
   }
 
+  virtual LoadState GetLoadState(RequestHandle request) const OVERRIDE {
+    NOTREACHED();
+    return LOAD_STATE_IDLE;
+  }
+
   virtual void Shutdown() OVERRIDE {
     host_resolver_->Shutdown();
   }