Add context_utils.h includes where needed.

components/invalidation/impl/invalidation_service_android_unittest.cc

 // Copyright (c) 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.
 
 #include "components/invalidation/impl/invalidation_service_android.h"
 
-#include "base/android/jni_android.h"
+#include "base/android/context_utils.h"
 #include "components/invalidation/impl/fake_invalidation_handler.h"
 #include "components/invalidation/impl/invalidation_service_test_template.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace invalidation {
 
 #if defined(OS_ANDROID)
 
 class InvalidationServiceAndroidTest : public testing::Test {
  public:
@@ skipping 14 matching lines @@
   ASSERT_FALSE(id1.empty());
 
   // If nothing else, the ID should be consistent.
   const std::string id2 = invalidation_service().GetInvalidatorClientId();
   ASSERT_EQ(id1, id2);
 }
 
 #endif
 
 }  // namespace invalidation