[hunspell] Spellcheck 99-character words.

Because of regression in
http://src.chromium.org/viewvc/chrome?view=rev&revision=174476, the browser does
not check spelling in 99-character words. This CL makes sure that the browser
checks the spelling of 99-character words by increasing one of the buffers by
one character instead of reducing the number of characters checked. This
approach is simpler than the one in revision 174476.

Unit test: https://codereview.chromium.org/11776032/.

Upstream bug report:


Review URL: https://codereview.chromium.org/11778031

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/hunspell@175968 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
3 files changed