Release notes for the new version:
https://sqlite.org/releaselog/3_21_0.html

Patch 0003 (Modify default VFS to support WebDatabase) was updated to
reflect conflicts introduced by the following commits:
* https://www.sqlite.org/src/info/3075cfa07489eaf1
* https://www.sqlite.org/src/info/1a7e0b61c8a6bdd3

The patch was updated to reflect the rename of pUnused to
pPreallocatedUnused and an extra assert added. Both changes were in
src/os_unix.c.

Patch 0004 (Virtual table supporting recovery of corrupted databases)
was updated to reflect the addition of new compile-time flags to
main.mk.

Patch 0005 (Custom shell.c helpers to load Chromium's ICU data) was
updated to reflect conflicts introduced by
https://www.sqlite.org/src/info/36acc0a97fdcc6f5 which replaced
src/shell.c with src/shell.c.in, which is used to generate src/shell.c
via Tcl. The change in the build process also introduced conflicts in
main.mk.

Patch 0009 (Fix _CRT_RAND_S conflict in sqliteInt.h) was removed
completely. It is no longer necessary, because
https://www.sqlite.org/src/info/3a2793aa65727cbb removed the use of
_CRT_RAND_S in src/sqliteInt.h.

Patches 0012 and 0013 were removed, because they were backports for
upstream changes that fixed clusterfuzz issues. Upgrading removed the
need for backports altogether.

The new SQLite release allows ATTACH and DETACH to be used inside
transactions, so sql/connection_unittest.cc was updated to reflect the
new behavior. The test for attaching databases was broken into two
tests, covering the behavior with and without a transaction. The former
test (covering the behavior with a transaction) has separate
implementations for iOS, where we use the system SQLite, which might be
old, and every other platform, where we ship our own SQLite version.

Bug: 780626, 701522
Change-Id: I7a8378cb317966388ebe9903d9e61162d3b3d3c9
Reviewed-on: https://chromium-review.googlesource.com/754522


Reviewed-by: Chris Mumford <cmumford@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515403}