The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6757c9566c56bdf797701f7e1628bae147514109

commit 6757c9566c56bdf797701f7e1628bae147514109
Author: shanmuga.m <shanmuga.m@samsung.com>
Date: Fri May 26 07:27:39 2017

Rename StringCallback to FunctionStringCallback.

Rename StringCallback to FunctionStringCallback
in DataTransferItem interface.

spec:
https://html.spec.whatwg.org/#the-datatransferitem-interface

BUG= 701477 

Review-Url: https://codereview.chromium.org/2896183002
Cr-Commit-Position: refs/heads/master@{#474955}

[modify] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/clipboard/DataTransferItem.cpp
[modify] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/clipboard/DataTransferItem.h
[modify] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/clipboard/DataTransferItem.idl
[modify] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/core_idl_files.gni
[modify] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/dom/BUILD.gn
[rename] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/dom/FunctionStringCallback.h
[rename] https://crrev.com/6757c9566c56bdf797701f7e1628bae147514109/third_party/WebKit/Source/core/dom/FunctionStringCallback.idl