Add a unit test that filenames aren't unintentionally converted to URLs.

remoting/host/clipboard_win.cc

Index: remoting/host/clipboard_win.cc
diff --git a/remoting/host/clipboard_win.cc b/remoting/host/clipboard_win.cc
index dfb627013aa483d075802901a10c0a2084133622..288517948a32e7302be5767c1b0edf139110d20d 100644
--- a/remoting/host/clipboard_win.cc
+++ b/remoting/host/clipboard_win.cc
@@ -242,7 +242,7 @@ void ClipboardWin::OnClipboardUpdate() {
         return;
       }
 
-      base::win::ScopedHGlobal<WCHAR> text_lock(text_global);
+      base::win::ScopedHGlobal<WCHAR*> text_lock(text_global);
       if (!text_lock.get()) {
         LOG(WARNING) << "Couldn't lock clipboard data: " << GetLastError();
         return;