Update metrics constant for Encryption & credentials.

Use the new metrics constant for the sub-page instead of the original
"security" metrics.

Change-Id: I0bdceae3d2e299e94791021c0d0aff2c9019fdd0
Fix: 35630998
Test: make RunSettingsRoboTests

src/com/android/settings/EncryptionAndCredential.java

@@ -67,7 +67,7 @@ public class EncryptionAndCredential extends SettingsPreferenceFragment implemen
 
     @Override
     public int getMetricsCategory() {
-        return MetricsEvent.SECURITY;
+        return MetricsEvent.ENCRYPTION_AND_CREDENTIAL;
     }
 
     @Override

tests/robotests/src/com/android/settings/EncryptionAndCredentialTest.java

@@ -0,0 +1,37 @@
+/*
+ * 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
+ */
+
+package com.android.settings;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class EncryptionAndCredentialTest {
+
+    @Test
+    public void getMetricsCategory_shouldReturnEncryptionAndCredential() {
+        EncryptionAndCredential fragment = new EncryptionAndCredential();
+        assertThat(fragment.getMetricsCategory()).isEqualTo(MetricsEvent.ENCRYPTION_AND_CREDENTIAL);
+    }
+
+}