Add action for search results including the count

Bug: 20293458
Change-Id: I9d3f04fb74c0e978e69e17898b703e270298fcbc

src/com/android/settings/InstrumentedFragment.java

@@ -27,6 +27,7 @@ public abstract class InstrumentedFragment extends PreferenceFragment {
     public static final int UNDECLARED = 100000;
 
     public static final int ABOUT_LEGAL_SETTINGS = UNDECLARED + 1;
+    public static final int ACTION_SEARCH_RESULTS = UNDECLARED + 2;
 
     /**
      * Declare the view of this category.

src/com/android/settings/dashboard/SearchResultsSummary.java

@@ -83,6 +83,8 @@ public class SearchResultsSummary extends InstrumentedFragment {
         @Override
         protected void onPostExecute(Cursor cursor) {
             if (!isCancelled()) {
+                MetricsLogger.action(getContext(), InstrumentedFragment.ACTION_SEARCH_RESULTS,
+                        cursor.getCount());
                 setResultsCursor(cursor);
                 setResultsVisibility(cursor.getCount() > 0);
             } else if (cursor != null) {