Avoid using a cast for a overload selection

content/browser/indexed_db/indexed_db_unittest.cc

 // Copyright (c) 2012 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 <utility>
 
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
@@ skipping 228 matching lines @@
       temp_dir.path(), special_storage_policy_.get(),
       quota_manager_proxy_.get(), task_runner_.get());
 
   base::FilePath test_path = idb_context->GetFilePathForTesting(kTestOrigin);
   ASSERT_TRUE(base::CreateDirectory(test_path));
 
   std::unique_ptr<LevelDBLock> lock =
       LevelDBDatabase::LockForTesting(test_path);
   ASSERT_TRUE(lock);
 
   // TODO(jsbell): Remove static_cast<> when overloads are eliminated.

[jsbell, 2016/07/07 16:49:05]

Would have been nice to eliminate the comment too. :) Follow-up?

+  void (IndexedDBContextImpl::* delete_for_origin)(const Origin&) =
+      &IndexedDBContextImpl::DeleteForOrigin;
   idb_context->TaskRunner()->PostTask(
       FROM_HERE,
-      base::Bind(static_cast<void (IndexedDBContextImpl::*)(const Origin&)>(
-                     &IndexedDBContextImpl::DeleteForOrigin),
-                 idb_context, kTestOrigin));
+      base::Bind(delete_for_origin, idb_context, kTestOrigin));
   FlushIndexedDBTaskRunner();
 
   EXPECT_TRUE(base::DirectoryExists(test_path));
 }
 
 TEST_F(IndexedDBTest, ForceCloseOpenDatabasesOnCommitFailure) {
   const Origin kTestOrigin(GURL("http://test/"));
 
   base::ScopedTempDir temp_dir;
   ASSERT_TRUE(temp_dir.CreateUniqueTempDir());
@@ skipping 25 matching lines @@
 
   // Simulate the write failure.
   leveldb::Status status = leveldb::Status::IOError("Simulated failure");
   callbacks->connection()->database()->TransactionCommitFailed(status);
 
   EXPECT_TRUE(db_callbacks->forced_close_called());
   EXPECT_FALSE(factory->IsBackingStoreOpen(kTestOrigin));
 }
 
 }  // namespace content