Updating the Chromoting Test Driver to target the test environment

remoting/test/fake_host_list_fetcher.cc

Index: remoting/test/fake_host_list_fetcher.cc
diff --git a/remoting/test/fake_host_list_fetcher.cc b/remoting/test/fake_host_list_fetcher.cc
index 0f7b8d2e999b9ae6adeb981ba250e7c68049039b..f1bc15bdc0929fa1f6fb739730bc4e7fe9a6e0ed 100644
--- a/remoting/test/fake_host_list_fetcher.cc
+++ b/remoting/test/fake_host_list_fetcher.cc
@@ -14,6 +14,7 @@ FakeHostListFetcher::~FakeHostListFetcher() {
 }
 
 void FakeHostListFetcher::RetrieveHostlist(const std::string& access_token,
+                                           const std::string& target_url,
                                            const HostlistCallback& callback) {
   callback.Run(host_list_);
 }