Merge pull request #2715 from wuhengzhi/crosswalk-10

[Android] Update the Crosswalk logo.
Bump version to 10.39.235.12
[Application] Add the check for return value of Begin().

This patch is to check the return value of Begin().

CID=194012
CID=194029

Related to XWALK-2928

(cherry picked from commit 997a8a3505c1dcf6441ad5e564be3367d26d59e1)
[Runtime] Add the initialization for the struct members.

This patch is to add the initialization for the members in FieldIds.

CID=220063

Related to XWALK-2928.

(cherry picked from commit 5822a3b071412bb9ecbe3b297734af3f054a3d2a)
extensions: Check GetString()'s return value.

CID=229802
CID=229803

(cherry picked from commit df87c52a8cc52082faf97bbbd9d509457ea8f1e6)
[Application] Add the initialization for |header_|.

This patch is to add the initialization for |header_| in the
constructor.

CID=194686

Related to XWALK-2928.

(cherry picked from commit b40940c6f1ca8125d37e2164795415f039413504)
Merge pull request #2735 from rakuco/cr10-cid-backports

crosswalk-10: Backport Coverity fixes.
Bump version to 10.39.235.13
[Runtime] Add the check for return value of GetDEREncoded().

This patch is to add the check for return value of GetDEREncoded() in
xwalk_contents_client_bridge.cc.

CID=220017

Related to XWALK-2928
(cherry picked from commit 9767ffd50567a82dc231136cb57579a9775162a4)