Two files have bad generate_thunk annotations:
  FileIO_Dev doesn't have backing functions in an API for functions in the IDL so a generated thunk won't compile.

  URLUtil_Dev has an existing manually created thunk. A generated one doesn't compile, and I don't have time to debug it.

  Removing bad annotations since they cause generator.py to produce bad thunk files.

R=yzshen@chromium.org

Review URL: https://codereview.chromium.org/91533004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237595 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237595
Remove WEBKIT_HAS_TARGET_IS_PING #ifdef.

The Blink revision has rolled past that point.

BUG=302816
TEST=no behavior change.

Review URL: https://codereview.chromium.org/85593005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237596 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237596