Move some blob tests next to the files they cover.

content/browser/blob_storage/blob_data_builder_unittest.cc

-// Copyright 2016 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/blob/blob_data_builder.h"
-
-#include <string>
-
-#include "base/logging.h"
-#include "storage/common/data_element.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace storage {
-
-TEST(BlobDataBuilderTest, TestFutureFiles) {
-  const std::string kId = "id";
-
-  DataElement element;
-  element.SetToFilePath(BlobDataBuilder::GetFutureFileItemPath(0));
-  EXPECT_TRUE(BlobDataBuilder::IsFutureFileItem(element));
-  EXPECT_EQ(0ull, BlobDataBuilder::GetFutureFileID(element));
-
-  BlobDataBuilder builder(kId);
-  builder.AppendFutureFile(0, 10, 0);
-  EXPECT_TRUE(
-      BlobDataBuilder::IsFutureFileItem(builder.items_[0]->data_element()));
-  EXPECT_EQ(0ull, BlobDataBuilder::GetFutureFileID(
-                      builder.items_[0]->data_element()));
-}
-
-}  // namespace storage