Move JNI annotations to annotations package.

chrome/android/java/src/org/chromium/chrome/browser/signin/AccountManagementScreenHelper.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.signin;
 
 import android.content.Context;
 import android.content.Intent;
 import android.provider.Settings;
 
-import org.chromium.base.CalledByNative;
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.profiles.ProfileAccountManagementMetrics;
 
 /**
  * Stub entry points and implementation interface for the account management fragment delegate.
  */
 public class AccountManagementScreenHelper {
 
     /*
      * TODO(guohui): add all Gaia service types.
@@ skipping 42 matching lines @@
      * @param metric One of ProfileAccountManagementMetrics constants.
      * @param gaiaServiceType A signin::GAIAServiceType.
      */
     public static void logEvent(int metric, int gaiaServiceType) {
         nativeLogEvent(metric, gaiaServiceType);
     }
 
     // Native methods.
     private static native void nativeLogEvent(int metric, int gaiaServiceType);
 }