Make MountPointProvider pluggable from outside webkit/fileapi

content/browser/fileapi/browser_file_system_helper.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 "content/browser/fileapi/browser_file_system_helper.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "webkit/fileapi/external_mount_points.h"
 #include "webkit/fileapi/file_permission_policy.h"
 #include "webkit/fileapi/file_system_options.h"
 #include "webkit/fileapi/file_system_task_runners.h"
+#include "webkit/fileapi/isolated_context.h"
 #include "webkit/fileapi/local_file_system_operation.h"
+#include "webkit/fileapi/mount_points.h"
 #include "webkit/fileapi/sandbox_mount_point_provider.h"
 #include "webkit/quota/quota_manager.h"
 
+#if defined(OS_CHROMEOS)
+#include "webkit/chromeos/fileapi/cros_mount_point_provider.h"
+#endif
+
 namespace content {
 
 namespace {
 
 using fileapi::FileSystemOptions;
 
 FileSystemOptions CreateBrowserFileSystemOptions(bool is_incognito) {
   FileSystemOptions::ProfileMode profile_mode =
       is_incognito ? FileSystemOptions::PROFILE_MODE_INCOGNITO
                    : FileSystemOptions::PROFILE_MODE_NORMAL;
   std::vector<std::string> additional_allowed_schemes;
   GetContentClient()->browser()->GetAdditionalAllowedSchemesForFileSystem(
       &additional_allowed_schemes);
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kAllowFileAccessFromFiles)) {
     additional_allowed_schemes.push_back(chrome::kFileScheme);
   }
   return FileSystemOptions(profile_mode, additional_allowed_schemes);
 }
 
 }  // namespace
 
 scoped_refptr<fileapi::FileSystemContext> CreateFileSystemContext(
-        const base::FilePath& profile_path, bool is_incognito,
-        fileapi::ExternalMountPoints* external_mount_points,
-        quota::SpecialStoragePolicy* special_storage_policy,
-        quota::QuotaManagerProxy* quota_manager_proxy) {
+    const base::FilePath& partition_path,
+    bool is_incognito,
+    fileapi::ExternalMountPoints* external_mount_points,
+    quota::SpecialStoragePolicy* special_storage_policy,
+    quota::QuotaManagerProxy* quota_manager_proxy) {
   base::SequencedWorkerPool* pool = BrowserThread::GetBlockingPool();
   base::SequencedWorkerPool::SequenceToken media_sequence_token =
       pool->GetNamedSequenceToken(fileapi::kMediaTaskRunnerName);
 
   scoped_ptr<fileapi::FileSystemTaskRunners> task_runners(
       new fileapi::FileSystemTaskRunners(
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO),
           BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
           pool->GetSequencedTaskRunner(media_sequence_token)));
 
+  fileapi::FileSystemOptions options(
+      CreateBrowserFileSystemOptions(is_incognito));
+
+  // Setting up mount points.
+  std::vector<fileapi::MountPoints*> additional_mount_points;
+  if (external_mount_points)
+    additional_mount_points.push_back(external_mount_points);
+
+  // Setting up additional mount point providers.
+  ScopedVector<fileapi::FileSystemMountPointProvider> additional_providers;
+#if defined(OS_CHROMEOS)
+  // TODO(kinuko): Move this to chrome/.
+  additional_providers.push_back(
+      new chromeos::CrosMountPointProvider(
+          special_storage_policy,
+          external_mount_points,
+          fileapi::ExternalMountPoints::GetSystemInstance()));
+#endif
+
   return new fileapi::FileSystemContext(
       task_runners.Pass(),
-      external_mount_points,
-      special_storage_policy,
       quota_manager_proxy,
-      profile_path,
-      CreateBrowserFileSystemOptions(is_incognito));
+      additional_providers.Pass(),
+      additional_mount_points,
+      partition_path,
+      options);
 }
 
 bool CheckFileSystemPermissionsForProcess(
     fileapi::FileSystemContext* context, int process_id,
     const fileapi::FileSystemURL& url, int permissions,
     base::PlatformFileError* error) {
   DCHECK(error);
   *error = base::PLATFORM_FILE_OK;
 
   if (!url.is_valid()) {
@@ skipping 76 matching lines @@
   // for the file. (We first need to check if it can already be read not to
   // overwrite existing permissions)
   if (!ChildProcessSecurityPolicyImpl::GetInstance()->CanReadFile(
           process_id, *platform_path)) {
     ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
         process_id, *platform_path);
   }
 }
 
 }  // namespace content