[Android] Restrict tests inheriting from DocumentModeTestBase to phones.

base/test/android/javatests/src/org/chromium/base/test/util/Restriction.java

 // Copyright 2013 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.base.test.util;
 
 import java.lang.annotation.ElementType;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.lang.annotation.Target;
 
 /**
  * An annotation for listing restrictions for a test method. For example, if a test method is only
  * applicable on a phone with small memory:
  *     @Restriction({RESTRICTION_TYPE_PHONE, RESTRICTION_TYPE_SMALL_MEMORY})
  * Test classes are free to define restrictions and enforce them using reflection at runtime.
  */
-@Target(ElementType.METHOD)
+@Target({ElementType.METHOD, ElementType.TYPE})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface Restriction {
     /** Specifies the test is only valid on low end devices that have less memory. */
     public static final String RESTRICTION_TYPE_LOW_END_DEVICE = "Low_End_Device";
 
     /** Specifies the test is only valid on non-low end devices. */
     public static final String RESTRICTION_TYPE_NON_LOW_END_DEVICE = "Non_Low_End_Device";
 
     /** Specifies the test is only valid on a device that can reach the internet. */
     public static final String RESTRICTION_TYPE_INTERNET = "Internet";
 
     /**
      * @return A list of restrictions.
      */
     public String[] value();
 }