Settings search - Navigate user to exact page

- remove duplicate index preference
- default set searchable = false when the preference has fragment
- make some fragments indexable

Bug: 143057584
Test: robotest & manual

Change-Id: I4d64f6106d2f92f0a45e8c7e26388677f593f412

src/com/android/settings/applications/ProcessStatsSummary.java

@@ -29,7 +29,13 @@ import com.android.settings.SummaryPreference;
 import com.android.settings.Utils;
 import com.android.settings.applications.ProcStatsData.MemInfo;
 import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
+/**
+ * Settings screen to provide memory stats summary
+ */
+@SearchIndexable
 public class ProcessStatsSummary extends ProcessStatsBase implements OnPreferenceClickListener {
 
     private static final String KEY_STATUS_HEADER = "status_header";
@@ -125,4 +131,7 @@ public class ProcessStatsSummary extends ProcessStatsBase implements OnPreferenc
         }
         return false;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.process_stats_summary);
 }