The buffer length returned from ExpandEnvironmentStringsW includes the terminatng
null character, so we need to decrement it before setting the string length, as
XPCOM strings need to be stored with correct length information.
libraries that don't exist on Windows CE)
* Taking xxx advice and making GetNAME always return a GDI forcing us to use
GetTextMetrics instead of GetFontData (which doesn't exist on Windows CE)
* Windows CE on ARM doesn't support C++ exceptions. In the windows plugin code
uses catches to ensure that the plugins don't crash mozilla. On windows ce on
arm, we have no choice but to disable CALL_SAFETY_ON.
* On Windows CE, VerQueryValue internal structure can not be modified so
callers must do a bit of string conversion.
* Disabling more code in nsOSHelperAppService for Windows CE.
* Enabling the Windows Registry code in XPCOM since the Window CE shunt now
supports the limited set needed (all but notification).
Bug=297683, r=Ere Maijala, sr=Dan Veditz, a=Asa
