Use ScopedTaskEnvironment instead of MessageLoop in content unit tests.

content/browser/quota/quota_temporary_storage_evictor_unittest.cc

 // Copyright 2014 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 <stdint.h>
 
 #include <list>
 #include <map>
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/run_loop.h"
+#include "base/test/scoped_task_environment.h"
 #include "content/public/test/mock_storage_client.h"
 #include "storage/browser/quota/quota_manager.h"
 #include "storage/browser/quota/quota_temporary_storage_evictor.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using storage::QuotaTemporaryStorageEvictor;
 using storage::StorageType;
 
 namespace content {
 
@@ skipping 175 matching lines @@
   }
 
   void disable_timer_for_testing() const {
     temporary_storage_evictor_->timer_disabled_for_testing_ = true;
   }
 
   int num_get_usage_and_quota_for_eviction() const {
     return num_get_usage_and_quota_for_eviction_;
   }
 
-  base::MessageLoop message_loop_;
+  base::test::ScopedTaskEnvironment scoped_task_environment_;
   std::unique_ptr<MockQuotaEvictionHandler> quota_eviction_handler_;
   std::unique_ptr<QuotaTemporaryStorageEvictor> temporary_storage_evictor_;
   int num_get_usage_and_quota_for_eviction_;
   base::WeakPtrFactory<QuotaTemporaryStorageEvictorTest> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(QuotaTemporaryStorageEvictorTest);
 };
 
 TEST_F(QuotaTemporaryStorageEvictorTest, SimpleEvictionTest) {
   quota_eviction_handler()->AddOrigin(GURL("http://www.z.com"), 3000);
   quota_eviction_handler()->AddOrigin(GURL("http://www.y.com"), 200);
@@ skipping 169 matching lines @@
   EXPECT_EQ(150 + 300, quota_eviction_handler()->GetUsage());
 
   EXPECT_EQ(0, statistics().num_errors_on_evicting_origin);
   EXPECT_EQ(0, statistics().num_errors_on_getting_usage_and_quota);
   EXPECT_EQ(2, statistics().num_evicted_origins);
   EXPECT_EQ(1, statistics().num_eviction_rounds);
   EXPECT_EQ(0, statistics().num_skipped_eviction_rounds); // FIXME?
 }
 
 }  // namespace content