Chromecast Android: must explicitly bundle and extract icudtl.dat.

Chromecast Android: must explicitly bundle and extract icudtl.dat.

Android startup path automatically handles mmap'ing the ICU file
once it's at the expected location.

Without this, Cast Android build crashes immediately on startup.
Issue introduced at: https://codereview.chromium.org/833183004

R=byungchul@chromium.org,lcwu@chromium.org
BUG=None

Committed: https://crrev.com/30f7125f71b7c0f59997a3aefe86db63a7707bbc
Cr-Commit-Position: refs/heads/master@{#310637}

[lcwu1, 2015-01-08 23:31:05]

Hm..., without setting icu_use_data_file_flag to 1, even if you manually copy
the data file to the assets directory, does it actually work? (It seems to me
that without setting the above-mentioned variable to 1, which in turn defines
ICU_UTIL_DATA_IMP to ICU_UTIL_DATA_FILE, icu_util won't actually try to read the
file. But I might be wrong.)

[lcwu1, 2015-01-08 23:41:01]

lgtm

[gunsch, 2015-01-08 23:43:18]

The CQ bit was checked by gunsch@chromium.org

[commit-bot: I haz the power, 2015-01-08 23:44:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/835273004/1

[byungchul, 2015-01-08 23:50:40]

lgtm

[commit-bot: I haz the power, 2015-01-09 00:13:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-09 00:14:29]

Patchset 1 (id:??) landed as
https://crrev.com/30f7125f71b7c0f59997a3aefe86db63a7707bbc
Cr-Commit-Position: refs/heads/master@{#310637}