[fsp] Remove the create flag from the file opening operation.

chrome/browser/chromeos/file_system_provider/operations/open_file.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPEN_FILE_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPEN_FILE_H_
 
 #include "base/files/file.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/file_system_provider/operations/operation.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_interface.h"
 #include "chrome/browser/chromeos/file_system_provider/request_value.h"
 #include "webkit/browser/fileapi/async_file_util.h"
 
 namespace base {
 class FilePath;
 }  // namespace base
 
 namespace extensions {
 class EventRouter;
 }  // namespace extensions
 
 namespace chromeos {
 namespace file_system_provider {
 namespace operations {
 
-// Opens a file for either read or write, with optionally creating the file
-// first. Note, that this is part of fileapi::CreateOrOpen file, but it does
-// not download the file locally. Created per request.
+// Opens a file for either read or write. The file must exist, otherwise the
+// operation will fail. Created per request.
 class OpenFile : public Operation {
  public:
   OpenFile(extensions::EventRouter* event_router,
            const ProvidedFileSystemInfo& file_system_info,
            const base::FilePath& file_path,
            ProvidedFileSystemInterface::OpenFileMode mode,
-           bool create,
            const ProvidedFileSystemInterface::OpenFileCallback& callback);
   virtual ~OpenFile();
 
   // Operation overrides.
   virtual bool Execute(int request_id) OVERRIDE;
   virtual void OnSuccess(int request_id,
                          scoped_ptr<RequestValue> result,
                          bool has_more) OVERRIDE;
   virtual void OnError(int request_id,
                        scoped_ptr<RequestValue> result,
                        base::File::Error error) OVERRIDE;
 
  private:
   base::FilePath file_path_;
   ProvidedFileSystemInterface::OpenFileMode mode_;
-  bool create_;
   const ProvidedFileSystemInterface::OpenFileCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(OpenFile);
 };
 
 }  // namespace operations
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_OPERATIONS_OPEN_FILE_H_