question: get a string preference value from crosswalk . an exception will be thrown if the key for the preference is not valid . concode_field_sep HashMap<String,PreferenceValue> sPrefMap concode_elem_sep String PROFILE_NAME concode_elem_sep int PREFERENCE_TYPE_STRING concode_elem_sep int PREFERENCE_TYPE_INTEGER concode_elem_sep String ENABLE_EXTENSIONS concode_elem_sep ReferenceQueue<KeyValueChangeListener> sRefQueue concode_elem_sep Object mValue concode_elem_sep String ALLOW_UNIVERSAL_ACCESS_FROM_FILE concode_elem_sep int mType concode_elem_sep String ENABLE_JAVASCRIPT concode_elem_sep ArrayList<WeakReference<KeyValueChangeListener>> sListeners concode_elem_sep String SUPPORT_MULTIPLE_WINDOWS concode_elem_sep int PREFERENCE_TYPE_BOOLEAN concode_elem_sep String JAVASCRIPT_CAN_OPEN_WINDOW concode_elem_sep String ANIMATABLE_XWALK_VIEW concode_elem_sep String REMOTE_DEBUGGING concode_field_sep boolean getValue concode_elem_sep void unregisterListener concode_elem_sep int getIntegerValue concode_elem_sep int getIntegerValue concode_elem_sep void load concode_elem_sep int getType concode_elem_sep void setValue concode_elem_sep void setValue concode_elem_sep void setValue concode_elem_sep void unload concode_elem_sep boolean getBooleanValue concode_elem_sep boolean getBooleanValue concode_elem_sep void checkKey concode_elem_sep void onKeyValueChanged concode_elem_sep void onKeyValueChanged concode_elem_sep void registerListener concode_elem_sep void removeEnqueuedReference
target: String function ( String arg0 ) { checkKey ( arg0 ) ; return sPrefMap . get ( arg0 ) . getStringValue ( ) ; }