[MultiControl] Fix copy & paste been blocked issue

ReadPng not implemented on ClipboardEfl,
should return a empty data for avoiding block the following process.

refer:
https://review.tizen.org/gerrit/#/c/275500

Change-Id: If0af9bca5b783b1b78e61026cd95354234be13a6
Signed-off-by: chenshurong <shurong.chen@samsung.com>

diff --git a/tizen_src/chromium_impl/ui/base/clipboard/clipboard_efl.cc b/tizen_src/chromium_impl/ui/base/clipboard/clipboard_efl.cc
index 63a8bfbf39e4db7f8aa8cbc6ab4fa8c5bc754a5c..4b2bd98610c68b9a4d7839ea99931c84617eeb0d 100644 (file)
--- a/tizen_src/chromium_impl/ui/base/clipboard/clipboard_efl.cc
+++ b/tizen_src/chromium_impl/ui/base/clipboard/clipboard_efl.cc
@@ -166,6 +166,8 @@ void ClipboardEfl::ReadRTF(ClipboardBuffer type,
 void ClipboardEfl::ReadPng(ClipboardBuffer buffer,
                            const DataTransferEndpoint* data_dst,
                            ReadPngCallback callback) const {
+  // Return an empty data for avoiding block the following process.
+  std::move(callback).Run(std::vector<uint8_t>());
   NOTIMPLEMENTED();
 }