D10155: Use the much faster urls() method from QMimeData

[Jaime Torres Amate]

jtamate created this revision.
jtamate added reviewers: Frameworks, dfaure.
Restricted Application added a project: Frameworks.
jtamate requested review of this revision.

REVISION SUMMARY
  When requesting a list of text/uri-list, use the much faster QMimeData
  urls() method.
  The unittests pass (the desktop: protocol) and
  CCBUG: 342056
  is half solved. The paste speed is as fast as drag&drop in local files
  and with fish: files.
  The lock in X11 plasma or kwin still needs another patch.

TEST PLAN
  Select 2000 files in one folder, cut and paste them in another disk.

REPOSITORY
  R244 KCoreAddons

BRANCH
  paste (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D10155

AFFECTED FILES
  src/lib/io/kurlmimedata.cpp

To: jtamate, #frameworks, dfaure
Cc: michaelh
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