Add advanced button to security & location page

Change-Id: I45977105d6ddabef8f2d9bdc7b46959af9cbbf0f
Fixes: 36657221
Test: visual

res/xml/security_settings_advanced_button.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2017 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res/com.android.settings"
+    android:key="security_dashboard_page"
+    android:title="@string/security_settings_title"
+    settings:initialExpandedChildrenCount="9">
+
+</PreferenceScreen>

src/com/android/settings/SecuritySettings.java

@@ -59,6 +59,7 @@ import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.TrustAgentUtils.TrustAgentComponentInfo;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
 import com.android.settings.dashboard.DashboardFeatureProvider;
+import com.android.settings.dashboard.ProgressiveDisclosureMixin;
 import com.android.settings.dashboard.SummaryLoader;
 import com.android.settings.enterprise.EnterprisePrivacyPreferenceController;
 import com.android.settings.enterprise.ManageDeviceAdminPreferenceController;
@@ -275,7 +276,11 @@ public class SecuritySettings extends SettingsPreferenceFragment
         if (root != null) {
             root.removeAll();
         }
-        addPreferencesFromResource(R.xml.security_settings);
+        if (ProgressiveDisclosureMixin.isV2Enabled()) {
+            addPreferencesFromResource(R.xml.security_settings);
+        } else {
+            addPreferencesFromResource(R.xml.security_settings_advanced_button);
+        }
         root = getPreferenceScreen();
 
         // Add category for security status

src/com/android/settings/dashboard/ProgressiveDisclosureMixin.java

@@ -106,7 +106,11 @@ public class ProgressiveDisclosureMixin implements Preference.OnPreferenceClickL
     }
 
     public boolean isEnabled() {
-        return !FeatureFlagUtils.isEnabled(FEATURE_FLAG_NEW_ADVANCE_BUTTON);
+        return !isV2Enabled();
+    }
+
+    public static boolean isV2Enabled() {
+        return FeatureFlagUtils.isEnabled(FEATURE_FLAG_NEW_ADVANCE_BUTTON);
     }
 
     /**