Move url_request_test_util into net namespace

chrome_frame/test/net/fake_external_tab.h

Index: chrome_frame/test/net/fake_external_tab.h
diff --git a/chrome_frame/test/net/fake_external_tab.h b/chrome_frame/test/net/fake_external_tab.h
index 18e24b0e98bf9544bb59d484bc659d46348e5849..43ae724667c5a201965b90e1e320d0e229d8faa6 100644
--- a/chrome_frame/test/net/fake_external_tab.h
+++ b/chrome_frame/test/net/fake_external_tab.h
@@ -23,7 +23,10 @@
 class CommandLine;
 class FakeBrowserProcessImpl;
 class ProcessSingleton;
+
+namespace net {
 class ScopedCustomUrlRequestTestHttpHost;
+}  // namespace net
 
 namespace content {
 class NotificationService;
@@ -122,7 +125,7 @@ class CFUrlRequestUnittestRunner
   base::ProcessHandle crash_service_;
   DWORD test_thread_id_;
 
-  scoped_ptr<ScopedCustomUrlRequestTestHttpHost> override_http_host_;
+  scoped_ptr<net::ScopedCustomUrlRequestTestHttpHost> override_http_host_;
 
   scoped_ptr<test_server::SimpleWebServer> test_http_server_;
   test_server::SimpleResponse chrome_frame_html_;