Remove deprecated distractor filtering methods.

Change-Id: I10ccf75d9c00d66b4e85de6c3c019242f2e90b0e

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

@@ -89,9 +89,6 @@ public interface DictionaryFacilitator {
         void onUpdateMainDictionaryAvailability(boolean isMainDictionaryAvailable);
     }
 
-    // TODO: remove this, it's confusing with seamless multiple language switching
-    void setIsMonolingualUser(final boolean isMonolingualUser);
-
     boolean isActive();
 
     /**
@@ -165,10 +162,6 @@ public interface DictionaryFacilitator {
 
     boolean isValidSuggestionWord(final String word);
 
-    int getFrequency(final String word);
-
-    int getMaxFrequencyOfExactMatches(final String word);
-
     void clearUserHistoryDictionary(final Context context);
 
     String dump(final Context context);

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

@@ -230,10 +230,6 @@ public class DictionaryFacilitatorImpl implements DictionaryFacilitator {
     public DictionaryFacilitatorImpl() {
     }
 
-    // TODO: remove this, it's confusing with seamless multiple language switching
-    public void setIsMonolingualUser(final boolean isMonolingualUser) {
-    }
-
     public boolean isActive() {
         return null != mDictionaryGroups[0].mLocale;
     }
@@ -730,8 +726,7 @@ public class DictionaryFacilitatorImpl implements DictionaryFacilitator {
         return false;
     }
 
-    private int getFrequencyInternal(final String word,
-            final boolean isGettingMaxFrequencyOfExactMatches) {
+    private int getFrequency(final String word) {
         if (TextUtils.isEmpty(word)) {
             return Dictionary.NOT_A_PROBABILITY;
         }
@@ -741,12 +736,7 @@ public class DictionaryFacilitatorImpl implements DictionaryFacilitator {
             for (final String dictType : ALL_DICTIONARY_TYPES) {
                 final Dictionary dictionary = dictionaryGroup.getDict(dictType);
                 if (dictionary == null) continue;
-                final int tempFreq;
-                if (isGettingMaxFrequencyOfExactMatches) {
-                    tempFreq = dictionary.getMaxFrequencyOfExactMatches(word);
-                } else {
-                    tempFreq = dictionary.getFrequency(word);
-                }
+                final int tempFreq = dictionary.getFrequency(word);
                 if (tempFreq >= maxFreq) {
                     maxFreq = tempFreq;
                 }
@@ -755,16 +745,6 @@ public class DictionaryFacilitatorImpl implements DictionaryFacilitator {
         return maxFreq;
     }
 
-    @Override
-    public int getFrequency(final String word) {
-        return getFrequencyInternal(word, false /* isGettingMaxFrequencyOfExactMatches */);
-    }
-
-    @Override
-    public int getMaxFrequencyOfExactMatches(final String word) {
-        return getFrequencyInternal(word, true /* isGettingMaxFrequencyOfExactMatches */);
-    }
-
     private void clearSubDictionary(final String dictName) {
         final DictionaryGroup[] dictionaryGroups = mDictionaryGroups;
         for (final DictionaryGroup dictionaryGroup : dictionaryGroups) {

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

@@ -609,15 +609,7 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
 
     private void refreshPersonalizationDictionarySession(
             final SettingsValues currentSettingsValues) {
-        mDictionaryFacilitator.setIsMonolingualUser(
-                mRichImm.isSystemLocaleSameAsLocaleOfAllEnabledSubtypesOfEnabledImes());
-        final boolean shouldKeepUserHistoryDictionaries;
-        if (currentSettingsValues.mUsePersonalizedDicts) {
-            shouldKeepUserHistoryDictionaries = true;
-        } else {
-            shouldKeepUserHistoryDictionaries = false;
-        }
-        if (!shouldKeepUserHistoryDictionaries) {
+        if (!currentSettingsValues.mUsePersonalizedDicts) {
             // Remove user history dictionaries.
             PersonalizationHelper.removeAllUserHistoryDictionaries(this);
             mDictionaryFacilitator.clearUserHistoryDictionary(this);