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

chrome/browser/chromeos/file_system_provider/provided_file_system.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/file_system_provider/provided_file_system.h"
 
 #include "base/debug/trace_event.h"
 #include "base/files/file.h"
 #include "chrome/browser/chromeos/file_system_provider/notification_manager.h"
 #include "chrome/browser/chromeos/file_system_provider/operations/close_file.h"
@@ skipping 81 matching lines @@
                                        length,
                                        callback)))) {
     callback.Run(0 /* chunk_length */,
                  false /* has_more */,
                  base::File::FILE_ERROR_SECURITY);
   }
 }
 
 void ProvidedFileSystem::OpenFile(const base::FilePath& file_path,
                                   OpenFileMode mode,
-                                  bool create,
                                   const OpenFileCallback& callback) {
-  // Writing is not supported. Note, that this includes a situation, when a file
-  // exists, but |create| is set to true.
-  if (mode == OPEN_FILE_MODE_WRITE || create) {
+  // Writing is not supported.
+  if (mode == OPEN_FILE_MODE_WRITE) {
     callback.Run(0 /* file_handle */, base::File::FILE_ERROR_SECURITY);
     return;
   }
 
   if (!request_manager_.CreateRequest(
           OPEN_FILE,
           scoped_ptr<RequestManager::HandlerInterface>(
               new operations::OpenFile(event_router_,
                                        file_system_info_,
                                        file_path,
                                        mode,
-                                       create,
                                        callback)))) {
     callback.Run(0 /* file_handle */, base::File::FILE_ERROR_SECURITY);
   }
 }
 
 void ProvidedFileSystem::CloseFile(
     int file_handle,
     const fileapi::AsyncFileUtil::StatusCallback& callback) {
   if (!request_manager_.CreateRequest(
           CLOSE_FILE,
@@ skipping 11 matching lines @@
 RequestManager* ProvidedFileSystem::GetRequestManager() {
   return &request_manager_;
 }
 
 base::WeakPtr<ProvidedFileSystemInterface> ProvidedFileSystem::GetWeakPtr() {
   return weak_ptr_factory_.GetWeakPtr();
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos