Use MetricsFeatureProvider for logging in Settings.

Bug: 31664539
Test: make RunSettingsRoboTests for regression
Test: adb logcat -b events | egrep "(sysui_|notification_)" for
      verifying log

Change-Id: Id944be7c4ff9911aebee481c2df485542f1318f0

tests/robotests/src/com/android/settings/core/instrumentation/InstrumentedDialogFragmentTest.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 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.core.instrumentation;
+
+import android.os.Bundle;
+
+import com.android.settings.TestConfig;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.annotation.Config;
+import org.robolectric.util.FragmentTestUtil;
+
+import static com.google.common.truth.Truth.assertThat;
+
+@RunWith(RobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class InstrumentedDialogFragmentTest {
+
+    public static class TestDialogFragment extends InstrumentedDialogFragment {
+        static final int TEST_METRIC = 1234;
+
+        public MetricsFeatureProvider getMetricsFeatureProvider() {
+            return mMetricsFeatureProvider;
+        }
+
+        @Override
+        public void onCreate(Bundle savedInstanceState) {
+            super.onCreate(savedInstanceState);
+
+            assertThat(mMetricsFeatureProvider).isNotNull();
+        }
+
+        @Override
+        public int getMetricsCategory() {
+            return TEST_METRIC;
+        }
+    }
+
+    @Test
+    public void runThroughFragmentLifecycles_shouldHaveMetricsFeatureProviderOnAttach() {
+        final TestDialogFragment fragment = new TestDialogFragment();
+
+        // Precondition: no metrics feature
+        assertThat(fragment.getMetricsFeatureProvider()).isNull();
+
+        FragmentTestUtil.startFragment(fragment);
+
+        // Verify: has metrics feature
+        assertThat(fragment.getMetricsFeatureProvider()).isNotNull();
+    }
+}