Move file_handlers API from //chrome to //extensions

extensions/browser/api/file_handlers/directory_util_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 "chrome/browser/extensions/api/file_handlers/directory_util.h"
+#include "extensions/browser/api/file_handlers/directory_util.h"
 
 #include <memory>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/run_loop.h"
-#include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
 namespace app_file_handler_util {
 namespace {
 
 const char kRandomPath[] = "/random/path";
 
@@ skipping 10 matching lines @@
   IsDirectoryUtilTest() {}
   ~IsDirectoryUtilTest() override {}
 
   void SetUp() override {
     EXPECT_TRUE(
         base::CreateNewTempDirectory(base::FilePath::StringType(), &dir_path_));
     EXPECT_TRUE(base::CreateTemporaryFile(&file_path_));
   }
 
   content::TestBrowserThreadBundle thread_bundle_;
-  TestingProfile profile_;
+  content::TestBrowserContext context_;
   base::FilePath dir_path_;
   base::FilePath file_path_;
 };
 
 TEST_F(IsDirectoryUtilTest, CollectForEntriesPaths) {
   std::vector<base::FilePath> paths;
   paths.push_back(dir_path_);
   paths.push_back(file_path_);
   paths.push_back(base::FilePath::FromUTF8Unsafe(kRandomPath));
 
-  IsDirectoryCollector collector(&profile_);
+  IsDirectoryCollector collector(&context_);
   std::set<base::FilePath> result;
   collector.CollectForEntriesPaths(
       paths, base::Bind(&OnCollectForEntriesPath, &result));
   content::RunAllBlockingPoolTasksUntilIdle();
 
   ASSERT_EQ(1u, result.size());
   EXPECT_GT(result.count(dir_path_), 0u);
 }
 
 }  // namespace app_file_handler_util
 }  // namespace extensions