Move more net classes into the net namespace.  Also remove the net_util namespace in favor of the net namespace.

This is a purely mechanical change.  There should be no logic changes.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/iframe_uitest.cc b/chrome/browser/iframe_uitest.cc
index 9b3b178c..72259431 100644
--- a/chrome/browser/iframe_uitest.cc
+++ b/chrome/browser/iframe_uitest.cc
@@ -38,7 +38,7 @@
     std::wstring test_file = test_data_directory_;
     file_util::AppendToPath(&test_file, url);
 
-    NavigateToURL(net_util::FilePathToFileURL(test_file));
+    NavigateToURL(net::FilePathToFileURL(test_file));
     Sleep(kWaitForActionMsec);  // The browser lazily updates the title.
 
     // Make sure the navigation succeeded.