Move ConditionListener to a top level class.

So we can use it later for furture refactoring.

Bug: 112485407
Test: rebuild
Change-Id: Ic3994464cfaff67a56f2d383490860a81f436fbd

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

@@ -39,7 +39,7 @@ import com.android.settings.core.SettingsBaseActivity.CategoryListener;
 import com.android.settings.dashboard.suggestions.SuggestionFeatureProvider;
 import com.android.settings.homepage.conditional.Condition;
 import com.android.settings.homepage.conditional.ConditionManager;
-import com.android.settings.homepage.conditional.ConditionManager.ConditionListener;
+import com.android.settings.homepage.conditional.ConditionListener;
 import com.android.settings.homepage.conditional.FocusRecyclerView;
 import com.android.settings.homepage.conditional.FocusRecyclerView.FocusListener;
 import com.android.settings.overlay.FeatureFactory;

src/com/android/settings/homepage/conditional/ConditionListener.java

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+package com.android.settings.homepage.conditional;
+
+public interface ConditionListener {
+    void onConditionsChanged();
+}

src/com/android/settings/homepage/conditional/ConditionManager.java

@@ -217,17 +217,6 @@ public class ConditionManager implements LifecycleObserver, OnResume, OnPause {
         return mConditions;
     }
 
-    public List<Condition> getVisibleConditions() {
-        List<Condition> conditions = new ArrayList<>();
-        final int N = mConditions.size();
-        for (int i = 0; i < N; i++) {
-            if (mConditions.get(i).shouldShow()) {
-                conditions.add(mConditions.get(i));
-            }
-        }
-        return conditions;
-    }
-
     public void notifyChanged(Condition condition) {
         saveToXml();
         Collections.sort(mConditions, CONDITION_COMPARATOR);
@@ -293,10 +282,6 @@ public class ConditionManager implements LifecycleObserver, OnResume, OnPause {
         return sInstance;
     }
 
-    public interface ConditionListener {
-        void onConditionsChanged();
-    }
-
     private static final Comparator<Condition> CONDITION_COMPARATOR = new Comparator<Condition>() {
         @Override
         public int compare(Condition lhs, Condition rhs) {