Update ICU to r31724 to fix a crash in dictbe.cpp used by sqlite and history full text search.
Update ICU to r31724 to fix a crash in dictbe.cpp used by sqlite and history full text search.

BUG=27115
TEST=None for now. Will add one to word_iterator_unittest
TBR=cevans
Review URL: http://codereview.chromium.org/386010

git-svn-id: http://src.chromium.org/svn/trunk/src@31735 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: c6a93df0e0fa97df33e9e31c9545684869fbbe82
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser