Refactor help menu stuff into a controller

This is a clean up to action bar menu item pattern, we will use the same
pattern to build search icon on all pages in a later change.

Bug: 68814716
Test: robotests
Change-Id: Iedd3ec263e8ccb63ed75ec7a95b28c00878b1de4

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

@@ -74,7 +74,7 @@ public class DataPlanUsageSummary extends DataUsageBase {
     private NetworkPolicyEditor mPolicyEditor;
 
     @Override
-    protected int getHelpResource() {
+    public int getHelpResource() {
         return R.string.help_url_data_usage;
     }
 

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

@@ -105,7 +105,7 @@ public class DataSaverSummary extends SettingsPreferenceFragment
     }
 
     @Override
-    protected int getHelpResource() {
+    public int getHelpResource() {
         return R.string.help_url_data_saver;
     }
 

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

@@ -91,7 +91,7 @@ public class DataUsageSummary extends DataUsageBase implements Indexable, DataUs
     private NetworkPolicyEditor mPolicyEditor;
 
     @Override
-    protected int getHelpResource() {
+    public int getHelpResource() {
         return R.string.help_url_data_usage;
     }
 

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

@@ -133,7 +133,7 @@ public class UnrestrictedDataAccess extends SettingsPreferenceFragment
     }
 
     @Override
-    protected int getHelpResource() {
+    public int getHelpResource() {
         return R.string.help_url_unrestricted_data_access;
     }