Added feature for surveys provider to Settings

It is now possible to create and show surveys to a user
asking them for feedback within the Settings app.

Test: JUnitTests
Bug: 27823357
Change-Id: I824899045f6ce30e5b6f46d20888da673114f658

tests/robotests/src/com/android/settings/testutils/FakeFeatureFactory.java

@@ -26,6 +26,7 @@ import com.android.settings.localepicker.LocaleFeatureProvider;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.overlay.SupportFeatureProvider;
 import com.android.settings.search2.SearchFeatureProvider;
+import com.android.settings.overlay.SurveyFeatureProvider;
 
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Mockito.mock;
@@ -45,6 +46,7 @@ public class FakeFeatureFactory extends FeatureFactory {
     public final ApplicationFeatureProvider applicationFeatureProvider;
     public final EnterprisePrivacyFeatureProvider enterprisePrivacyFeatureProvider;
     public final SearchFeatureProvider searchFeatureProvider;
+    public final SurveyFeatureProvider surveyFeatureProvider;
 
     /**
      * Call this in {@code @Before} method of the test class to use fake factory.
@@ -75,6 +77,7 @@ public class FakeFeatureFactory extends FeatureFactory {
         applicationFeatureProvider = mock(ApplicationFeatureProvider.class);
         enterprisePrivacyFeatureProvider = mock(EnterprisePrivacyFeatureProvider.class);
         searchFeatureProvider = mock(SearchFeatureProvider.class);
+        surveyFeatureProvider = mock(SurveyFeatureProvider.class);
     }
 
     @Override
@@ -116,4 +119,9 @@ public class FakeFeatureFactory extends FeatureFactory {
     public SearchFeatureProvider getSearchFeatureProvider(Context context) {
         return searchFeatureProvider;
     }
+
+    @Override
+    public SurveyFeatureProvider getSurveyFeatureProvider(Context context) {
+        return surveyFeatureProvider;
+    }
 }