Remove calls to deprecated MessageLoop methods in content.

content/browser/quota/quota_backend_impl_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 "storage/browser/fileapi/quota/quota_backend_impl.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
+#include "base/run_loop.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "storage/browser/fileapi/file_system_usage_cache.h"
 #include "storage/browser/fileapi/obfuscated_file_util.h"
 #include "storage/browser/quota/quota_manager_proxy.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/leveldatabase/src/helpers/memenv/memenv.h"
 #include "third_party/leveldatabase/src/include/leveldb/env.h"
 
 using storage::FileSystemUsageCache;
 using storage::ObfuscatedFileUtil;
@@ skipping 81 matching lines @@
     backend_.reset(new QuotaBackendImpl(file_task_runner(),
                                         file_util_.get(),
                                         &file_system_usage_cache_,
                                         quota_manager_proxy_.get()));
   }
 
   void TearDown() override {
     backend_.reset();
     quota_manager_proxy_ = NULL;
     file_util_.reset();
-    message_loop_.RunUntilIdle();
+    base::RunLoop().RunUntilIdle();
   }
 
  protected:
   void InitializeForOriginAndType(const GURL& origin,
                                   storage::FileSystemType type) {
     ASSERT_TRUE(file_util_->InitOriginDatabase(origin, true /* create */));
     ASSERT_TRUE(file_util_->origin_database_ != NULL);
 
     std::string type_string =
         SandboxFileSystemBackendDelegate::GetTypeString(type);
@@ skipping 140 matching lines @@
   uint32_t dirty = 0;
   ASSERT_TRUE(file_system_usage_cache_.GetDirty(path, &dirty));
   EXPECT_EQ(1u, dirty);
 
   backend_->DecrementDirtyCount(GURL(kOrigin), type);
   ASSERT_TRUE(file_system_usage_cache_.GetDirty(path, &dirty));
   EXPECT_EQ(0u, dirty);
 }
 
 }  // namespace content