Make RunInLocale as top-level class

...ndroid/inputmethod/keyboard/internal/KeyboardBuilder.java

.../src/com/android/inputmethod/latin/settings/Settings.java

...om/android/inputmethod/latin/settings/SettingsValues.java

.../src/com/android/inputmethod/latin/utils/LocaleUtils.java

.../src/com/android/inputmethod/latin/utils/RunInLocale.java

...m/android/inputmethod/latin/utils/SubtypeLocaleUtils.java

...nputmethod/keyboard/internal/KeySpecParserSplitTests.java

...oid/inputmethod/keyboard/internal/KeySpecParserTests.java

...roid/inputmethod/latin/utils/SubtypeLocaleUtilsTests.java