Fix NPE in settings

Bug: 5246032
Change-Id: I452dab9bf863fb8cba142467f338088ee8b30283

java/src/com/android/inputmethod/deprecated/VoiceProxy.java

@@ -717,8 +717,8 @@ public class VoiceProxy implements VoiceInput.UiListener {
         mHasUsedVoiceInputUnsupportedLocale =
                 sp.getBoolean(PREF_HAS_USED_VOICE_INPUT_UNSUPPORTED_LOCALE, false);
 
-        mLocaleSupportedForVoiceInput = SubtypeSwitcher.getInstance().isVoiceSupported(
-                SubtypeSwitcher.getInstance().getInputLocaleStr());
+        mLocaleSupportedForVoiceInput = SubtypeSwitcher.isVoiceSupported(
+                mService, SubtypeSwitcher.getInstance().getInputLocaleStr());
 
         final String voiceMode = sp.getString(PREF_VOICE_MODE,
                 mService.getString(R.string.voice_mode_main));

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

@@ -580,8 +580,8 @@ public class Settings extends InputMethodSettingsActivity
                 // Get the current list of supported locales and check the current locale against
                 // that list, to decide whether to put a warning that voice input will not work in
                 // the current language as part of the pop-up confirmation dialog.
-                boolean localeSupported = SubtypeSwitcher.getInstance().isVoiceSupported(
-                        Locale.getDefault().toString());
+                boolean localeSupported = SubtypeSwitcher.isVoiceSupported(
+                        this, Locale.getDefault().toString());
 
                 final CharSequence message;
                 if (localeSupported) {

java/src/com/android/inputmethod/latin/SubtypeSwitcher.java

@@ -539,14 +539,14 @@ public class SubtypeSwitcher {
     }
 
 
-    public boolean isVoiceSupported(String locale) {
+    public static boolean isVoiceSupported(Context context, String locale) {
         // Get the current list of supported locales and check the current locale against that
         // list. We cache this value so as not to check it every time the user starts a voice
         // input. Because this method is called by onStartInputView, this should mean that as
         // long as the locale doesn't change while the user is keeping the IME open, the
         // value should never be stale.
         String supportedLocalesString = VoiceProxy.getSupportedLocalesString(
-                mService.getContentResolver());
+                context.getContentResolver());
         List<String> voiceInputSupportedLocales = Arrays.asList(
                 supportedLocalesString.split("\\s+"));
         return voiceInputSupportedLocales.contains(locale);