Bug 1334182 - Turn off sandbox violation logging by default on Windows. r=jimm

Make security.sandbox.logging.enabled false by default on Windows only.

browser/app/profile/firefox.js

@@ -1029,8 +1029,12 @@ pref("security.sandbox.content.tempDirSuffix", "");
 #if defined(MOZ_SANDBOX)
 // This pref determines if messages relevant to sandbox violations are
 // logged.
+#if defined(XP_WIN)
+pref("security.sandbox.logging.enabled", false);
+#else
 pref("security.sandbox.logging.enabled", true);
 #endif
+#endif
 
 // This pref governs whether we attempt to work around problems caused by
 // plugins using OS calls to manipulate the cursor while running out-of-