Implement use_system_icu for Android.

It will be useful to be able to use the Android system version of ICU on
some future chromium build configs. Add the appropriate options to the
gyp file to enable this, since icu-config can't be used for
crosscompilation.

Review URL: https://chromiumcodereview.appspot.com/10632003

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/icu46@145871 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed