XFA: merge patch from CL 731673003, fix incorrect operator

Fixing operator so that bCheckRight isn't always true. Unknown effect!

VC++'s /analyze points out that this expression:
    FX_BOOL bCheckRight = type != 'D' || type != 'W';"
is always true. This means that the tests for the right edge of a word

Original patch from Bruce Dawson(brucedawson@chromium.org)

BUG=427616
TBR=jun_fang@foxitsoftware.com

Review URL: https://codereview.chromium.org/822763003
1 file changed