Return NOT_FOUND error for an attempt to create a file under nonexistent directory.

base/file_util_proxy.cc

 // Copyright (c) 2010 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 "base/file_util_proxy.h"
 
 #include "base/message_loop_proxy.h"
 
 // TODO(jianli): Move the code from anonymous namespace to base namespace so
 // that all of the base:: prefixes would be unnecessary.
@@ skipping 118 matching lines @@
     DCHECK(callback);
   }
 
  protected:
   virtual ~RelayCreateOrOpen() {
     if (file_handle_ != base::kInvalidPlatformFileValue)
       base::FileUtilProxy::Close(message_loop_proxy_, file_handle_, NULL);
   }
 
   virtual void RunWork() {
+    if (!file_util::DirectoryExists(file_path_.DirName())) {
+      // If its parent does not exist, should return NOT_FOUND error.
+      set_error_code(base::PLATFORM_FILE_ERROR_NOT_FOUND);
+      return;
+    }
     base::PlatformFileError error_code = base::PLATFORM_FILE_OK;
     file_handle_ = base::CreatePlatformFile(file_path_, file_flags_,
                                             &created_, &error_code);
     set_error_code(error_code);
   }
 
   virtual void RunCallback() {
     callback_->Run(error_code(), base::PassPlatformFile(&file_handle_),
                    created_);
     delete callback_;
@@ skipping 695 matching lines @@
 
 // static
 bool FileUtilProxy::Flush(
     scoped_refptr<MessageLoopProxy> message_loop_proxy,
     PlatformFile file,
     StatusCallback* callback) {
   return Start(FROM_HERE, message_loop_proxy, new RelayFlush(file, callback));
 }
 
 }  // namespace base