arc: Register ARC content file system

chrome/browser/chrome_content_browser_client.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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <map>
 #include <set>
 #include <utility>
 #include <vector>
@@ skipping 182 matching lines @@
 #include "url/origin.h"
 
 #if defined(OS_WIN)
 #include "base/strings/string_tokenizer.h"
 #include "chrome/browser/chrome_browser_main_win.h"
 #include "sandbox/win/src/sandbox_policy.h"
 #elif defined(OS_MACOSX)
 #include "chrome/browser/chrome_browser_main_mac.h"
 #elif defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/arc/arc_auth_service.h"
+#include "chrome/browser/chromeos/arc/fileapi/arc_content_file_system_backend_delegate.h"
 #include "chrome/browser/chromeos/arc/intent_helper/arc_navigation_throttle.h"
 #include "chrome/browser/chromeos/attestation/platform_verification_impl.h"
 #include "chrome/browser/chromeos/chrome_browser_main_chromeos.h"
 #include "chrome/browser/chromeos/chrome_interface_factory.h"
 #include "chrome/browser/chromeos/drive/fileapi/file_system_backend_delegate.h"
 #include "chrome/browser/chromeos/file_manager/app_id.h"
 #include "chrome/browser/chromeos/file_system_provider/fileapi/backend_delegate.h"
 #include "chrome/browser/chromeos/fileapi/file_system_backend.h"
 #include "chrome/browser/chromeos/fileapi/mtp_file_system_backend_delegate.h"
 #include "chrome/browser/chromeos/login/signin/merge_session_navigation_throttle.h"
@@ skipping 2534 matching lines @@
     const base::FilePath& storage_partition_path,
     ScopedVector<storage::FileSystemBackend>* additional_backends) {
 #if defined(OS_CHROMEOS)
   storage::ExternalMountPoints* external_mount_points =
       content::BrowserContext::GetMountPoints(browser_context);
   DCHECK(external_mount_points);
   chromeos::FileSystemBackend* backend = new chromeos::FileSystemBackend(
       new drive::FileSystemBackendDelegate,
       new chromeos::file_system_provider::BackendDelegate,
       new chromeos::MTPFileSystemBackendDelegate(storage_partition_path),
-      external_mount_points,
+      new arc::ArcContentFileSystemBackendDelegate, external_mount_points,

[hidehiko, 2016/10/25 16:55:44]

I know you follow the existing code, but could you please add ()?

cf) the 2. of
https://sites.google.com/a/chromium.org/dev/developers/coding-style/cpp-dos-a...

[hashimoto, 2016/10/26 05:23:12]

Replaced with base::MakeUnique().

       storage::ExternalMountPoints::GetSystemInstance());
   backend->AddSystemMountPoints();
   DCHECK(backend->CanHandleType(storage::kFileSystemTypeExternal));
   additional_backends->push_back(backend);
 #endif
 
   for (size_t i = 0; i < extra_parts_.size(); ++i) {
     extra_parts_[i]->GetAdditionalFileSystemBackends(
         browser_context, storage_partition_path, additional_backends);
   }
@@ skipping 463 matching lines @@
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 std::unique_ptr<content::MemoryCoordinatorDelegate>
 ChromeContentBrowserClient::GetMemoryCoordinatorDelegate() {
   return memory::ChromeMemoryCoordinatorDelegate::Create();
 }