Defined help page for Data Saver.

BUG: 28865521
Change-Id: I07930232312df2775ecee5beacee6921f7245847

res/values/strings.xml

@@ -5566,6 +5566,10 @@
     <string name="help_url_bluetooth" translatable="false"></string>
     <!-- Help URL, Data usage [DO NOT TRANSLATE] -->
     <string name="help_url_data_usage" translatable="false"></string>
+    <!-- Help URL, Data saver [DO NOT TRANSLATE] -->
+    <string name="help_url_data_saver" translatable="false"></string>
+    <!-- Help URL, Unrestricted data access [DO NOT TRANSLATE] -->
+    <string name="help_url_unrestricted_data_access" translatable="false"></string>
     <!-- Help URL, More [DO NOT TRANSLATE] -->
     <string name="help_url_more_networks" translatable="false"></string>
     <!-- Help URL, Vpn [DO NOT TRANSLATE] -->

src/com/android/settings/datausage/DataSaverSummary.java

@@ -18,6 +18,7 @@ import android.app.Application;
 import android.os.Bundle;
 import android.support.v7.preference.Preference;
 import android.widget.Switch;
+
 import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
@@ -94,6 +95,11 @@ public class DataSaverSummary extends SettingsPreferenceFragment
         return MetricsEvent.DATA_SAVER_SUMMARY;
     }
 
+    @Override
+    protected int getHelpResource() {
+        return R.string.help_url_data_saver;
+    }
+
     @Override
     public void onDataSaverChanged(boolean isDataSaving) {
         mSwitchBar.setChecked(isDataSaving);

src/com/android/settings/datausage/UnrestrictedDataAccess.java

@@ -133,6 +133,11 @@ public class UnrestrictedDataAccess extends SettingsPreferenceFragment
         rebuild();
     }
 
+    @Override
+    protected int getHelpResource() {
+        return R.string.help_url_unrestricted_data_access;
+    }
+
     private void rebuild() {
         ArrayList<AppEntry> apps = mSession.rebuild(mFilter, ApplicationsState.ALPHA_COMPARATOR);
         if (apps != null) {