Import SQLite 3.8.7.4.

third_party/sqlite/patches/0015-fts2-Fix-a-crasher-in-full-text-search-sqlite.patch

-From 89a3eac0dd55f34787abe98a509b7006fe2b7618 Mon Sep 17 00:00:00 2001
+From ab29deaf1d9911e7dfc5f12e1fb131f800c9d4fd Mon Sep 17 00:00:00 2001
 From: cpu <cpu@chromium.org>
 Date: Mon, 14 Sep 2009 17:37:35 +0000
-Subject: [PATCH 22/23] [fts2] Fix a crasher in full text search (sqlite)
+Subject: [PATCH 15/16] [fts2] Fix a crasher in full text search (sqlite)
 
 - If the xxx_segdir table gets corrupted, you can have non-contiguous indexes (idx).
 - This causes an assertion in debug, and a crash later on on release
 
 With this change it will return 'corrupted db'
 
 We shall wait to get a couple more fixes to upstream to sqlite org.
 
 BUG=21377
 TEST=see bug
@@ skipping 12 matching lines @@
 
 BUG=NONE
 TEST=NONE
 
 Original review URL: https://codereview.chromium.org/209001/
 ---
  third_party/sqlite/src/ext/fts2/fts2.c | 15 +++++++++++----
  1 file changed, 11 insertions(+), 4 deletions(-)
 
 diff --git a/third_party/sqlite/src/ext/fts2/fts2.c b/third_party/sqlite/src/ext/fts2/fts2.c
-index bdbd747..d5587b3 100644
+index 5cb3fc6..a78e3d3 100644
 --- a/third_party/sqlite/src/ext/fts2/fts2.c
 +++ b/third_party/sqlite/src/ext/fts2/fts2.c
 @@ -1838,7 +1838,7 @@ static const char *const fulltext_zStatement[MAX_STMT] = {
    /* SEGDIR_MAX_INDEX */ "select max(idx) from %_segdir where level = ?",
    /* SEGDIR_SET */ "insert into %_segdir values (?, ?, ?, ?, ?, ?)",
    /* SEGDIR_SELECT_LEVEL */
 -  "select start_block, leaves_end_block, root from %_segdir "
 +  "select start_block, leaves_end_block, root, idx from %_segdir "
    " where level = ? order by idx",
    /* SEGDIR_SPAN */
@@ skipping 32 matching lines @@
 +    rc = SQLITE_CORRUPT_BKPT;
 +    goto err;
 +  }
 +
    /* Since leavesReaderReorder() pushes readers at eof to the end,
    ** when the first reader is empty, all will be empty.
    */
 -- 
 2.2.1