Add a flag to show if the FileChooserCompletion needs local paths or not.

Source/web/ChromeClientImpl.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 596 matching lines @@
         return;
 
     WebFileChooserParams params;
     params.multiSelect = fileChooser->settings().allowsMultipleFiles;
     params.directory = fileChooser->settings().allowsDirectoryUpload;
     params.acceptTypes = fileChooser->settings().acceptTypes();
     params.selectedFiles = fileChooser->settings().selectedFiles;
     if (params.selectedFiles.size() > 0)
         params.initialValue = params.selectedFiles[0];
     params.useMediaCapture = fileChooser->settings().useMediaCapture;
+    params.needLocalPath = fileChooser->settings().allowsDirectoryUpload;

[tkent, 2014/10/16 00:39:02]

I think we need a local path even if directory uploading is not allowed.  I
guess this should be always |true|.

[hirono, 2014/10/16 06:45:07]

Currently I'm adding the support to upload files without local paths. Should we
set true to the flag now and update at the future CL?

[tkent, 2014/10/16 07:50:30]

Do you implement it for WebFileChooserCompletinoImpl and
WebViewClient::runFileChooser()?

[hirono, 2014/10/16 07:52:45]

Yes, this is a draft patch.
https://codereview.chromium.org/642813009/

[tkent, 2014/10/16 07:59:52]

ok, I understand.

 
     WebFileChooserCompletionImpl* chooserCompletion =
         new WebFileChooserCompletionImpl(fileChooser);
 
     if (client->runFileChooser(params, chooserCompletion))
         return;
 
     // Choosing failed, so do callback with an empty list.
     chooserCompletion->didChooseFile(WebVector<WebString>());
 }
@@ skipping 256 matching lines @@
         m_webView->autofillClient()->textFieldDidEndEditing(WebInputElement(&inputElement));
 }
 
 void ChromeClientImpl::openTextDataListChooser(HTMLInputElement& input)
 {
     if (m_webView->autofillClient())
         m_webView->autofillClient()->openTextDataListChooser(WebInputElement(&input));
 }
 
 } // namespace blink