Share decoders among latinime components.

Change-Id: I6c8d3cf10e05e606308cea42d1e935a415ada9f8

java-overridable/src/com/android/inputmethod/latin/DictionaryFacilitatorProvider.java

@@ -20,7 +20,7 @@ package com.android.inputmethod.latin;
  * Factory for instantiating DictionaryFacilitator objects.
  */
 public class DictionaryFacilitatorProvider {
-    public static DictionaryFacilitator getDictionaryFacilitator() {
+    public static DictionaryFacilitator getDictionaryFacilitator(boolean isNeededForSpellChecking) {
         return new DictionaryFacilitatorImpl();
     }
 }

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

@@ -41,7 +41,8 @@ public class DictionaryFacilitatorLruCache {
     public DictionaryFacilitatorLruCache(final Context context, final String dictionaryNamePrefix) {
         mContext = context;
         mDictionaryNamePrefix = dictionaryNamePrefix;
-        mDictionaryFacilitator = DictionaryFacilitatorProvider.getDictionaryFacilitator();
+        mDictionaryFacilitator = DictionaryFacilitatorProvider.getDictionaryFacilitator(
+                true /* isNeededForSpellChecking */);
     }
 
     private static void waitForLoadingMainDictionary(

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

@@ -127,7 +127,8 @@ public class LatinIME extends InputMethodService implements KeyboardActionListen
 
     final Settings mSettings;
     private final DictionaryFacilitator mDictionaryFacilitator =
-            DictionaryFacilitatorProvider.getDictionaryFacilitator();
+            DictionaryFacilitatorProvider.getDictionaryFacilitator(
+                    false /* isNeededForSpellChecking */);
     final InputLogic mInputLogic = new InputLogic(this /* LatinIME */,
             this /* SuggestionStripViewAccessor */, mDictionaryFacilitator);
     // We expect to have only one decoder in almost all cases, hence the default capacity of 1.