Add help uri for process stats summary and apps.

Bug: 62903521
Test: manual
Change-Id: I55cdb061d79232676d4064677bd7f5936700e8b7

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

@@ -102,6 +102,11 @@ public class ProcessStatsSummary extends ProcessStatsBase implements OnPreferenc
         return MetricsEvent.PROCESS_STATS_SUMMARY;
     }
 
+    @Override
+    protected int getHelpResource() {
+        return R.string.help_uri_process_stats_summary;
+    }
+
     @Override
     public boolean onPreferenceClick(Preference preference) {
         if (preference == mAppListPreference) {