Add content description to the voice key

Bug: 14849593
Change-Id: I1664b6a4ef54b78a09df65adbffff7861b54c4a9
diff --git a/java/res/layout/suggestions_strip.xml b/java/res/layout/suggestions_strip.xml
index 36898c8..3d2f07f 100644
--- a/java/res/layout/suggestions_strip.xml
+++ b/java/res/layout/suggestions_strip.xml
@@ -71,5 +71,6 @@
         android:layout_alignParentEnd="true"
         android:layout_alignParentRight="true"
         android:layout_centerVertical="true"
+        android:contentDescription="@string/spoken_description_mic"
         style="?attr/suggestionWordStyle" />
 </merge>
diff --git a/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java b/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
index 8bfa63c..810bda7 100644
--- a/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
+++ b/java/src/com/android/inputmethod/latin/suggestions/SuggestionStripLayoutHelper.java
@@ -381,6 +381,7 @@
         }
 
         // Disable this suggestion if the suggestion is null or empty.
+        // TODO: Fix disabled {@link TextView}'s content description.
         wordView.setEnabled(!TextUtils.isEmpty(word));
         final CharSequence text = getEllipsizedText(word, width, wordView.getPaint());
         final float scaleX = getTextScaleX(word, width, wordView.getPaint());
@@ -424,7 +425,9 @@
             final int countInStrip) {
         // Clear all suggestions first
         for (int positionInStrip = 0; positionInStrip < countInStrip; ++positionInStrip) {
-            mWordViews.get(positionInStrip).setText(null);
+            final TextView wordView = mWordViews.get(positionInStrip);
+            wordView.setText(null);
+            wordView.setTag(null);
             // Make this inactive for touches in {@link #layoutWord(int,int)}.
             if (SuggestionStripView.DBG) {
                 mDebugInfoViews.get(positionInStrip).setText(null);