Support cross-profile copy between Chrome OS Google Drive folders.

chrome/browser/chromeos/drive/fileapi/fileapi_worker.cc

 // Copyright 2014 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/chromeos/drive/fileapi/fileapi_worker.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/task_runner_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
 #include "chrome/browser/chromeos/drive/file_system_interface.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/resource_entry_conversion.h"
 #include "content/public/browser/browser_thread.h"
+#include "webkit/browser/fileapi/file_system_url.h"
 #include "webkit/common/fileapi/directory_entry.h"
 
 using content::BrowserThread;
 
 namespace drive {
 namespace fileapi_internal {
 namespace {
 
 // The summary of opening mode is:
 // - PLATFORM_FILE_OPEN: Open the existing file. Fail if not exists.
@@ skipping 163 matching lines @@
       base::Bind(&base::CreatePlatformFile,
                  local_path, file_flags, static_cast<bool*>(NULL),
                  reinterpret_cast<base::PlatformFileError*>(result)),
       base::Bind(&RunOpenFileCallback,
                  callback, close_callback, base::Owned(result)));
   DCHECK(posted);
 }
 
 }  // namespace
 
+FileSystemInterface* GetFileSystemFromUrl(const fileapi::FileSystemURL& url) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  Profile* profile = util::ExtractProfileFromPath(url.path());
+  return profile ? util::GetFileSystemByProfile(profile) : NULL;
+}
+
 void RunFileSystemCallback(
     const FileSystemGetter& file_system_getter,
     const base::Callback<void(FileSystemInterface*)>& callback,
     const base::Closure& on_error_callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   FileSystemInterface* file_system = file_system_getter.Run();
 
   if (!file_system) {
     if (!on_error_callback.is_null())
       on_error_callback.Run();
@@ skipping 147 matching lines @@
                const StatusCallback& callback,
                FileSystemInterface* file_system) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   file_system->TouchFile(file_path, last_access_time, last_modified_time,
                          base::Bind(&RunStatusCallbackByFileError, callback));
 
 }
 
 }  // namespace fileapi_internal
 }  // namespace drive