Import SQLite 3.8.7.4.

third_party/sqlite/patches/0017-fts2-Disable-fts2_tokenizer-for-security-reasons.patch

-From ffc4e16279571911d59495335652905e06ac2b63 Mon Sep 17 00:00:00 2001
-From: Scott Hess <shess@chromium.org>
-Date: Mon, 22 Dec 2014 14:06:33 -0800
-Subject: [PATCH 17/23] [fts2] Disable fts2_tokenizer for security reasons.
-
-This was a leftover bit from merging the Gears SQLite into Chromium's version.
-
-Original commit URL, which also shifted directory structure:
-    http://src.chromium.org/viewvc/chrome?revision=7623&view=revision
----
- third_party/sqlite/src/ext/fts2/fts2.c | 18 ++++++++++++++++++
- 1 file changed, 18 insertions(+)
-
-diff --git a/third_party/sqlite/src/ext/fts2/fts2.c b/third_party/sqlite/src/ext/fts2/fts2.c
-index 3d9728a..4945cd9 100644
---- a/third_party/sqlite/src/ext/fts2/fts2.c
-+++ b/third_party/sqlite/src/ext/fts2/fts2.c
-@@ -37,6 +37,20 @@
- ** This is an SQLite module implementing full-text search.
- */
- 
-+/* TODO(shess): To make it easier to spot changes without groveling
-+** through changelogs, I've defined GEARS_FTS2_CHANGES to call them
-+** out, and I will document them here.  On imports, these changes
-+** should be reviewed to make sure they are still present, or are
-+** dropped as appropriate.
-+**
-+** SQLite core adds the custom function fts2_tokenizer() to be used
-+** for defining new tokenizers.  The second parameter is a vtable
-+** pointer encoded as a blob.  Obviously this cannot be exposed to
-+** Gears callers for security reasons.  It could be suppressed in the
-+** authorizer, but for now I have simply commented the definition out.
-+*/
-+#define GEARS_FTS2_CHANGES 1
-+
- /*
- ** The code in this file is only compiled if:
- **
-@@ -6822,7 +6836,11 @@ int sqlite3Fts2Init(sqlite3 *db){
-   ** module with sqlite.
-   */
-   if( SQLITE_OK==rc 
-+#if GEARS_FTS2_CHANGES && !SQLITE_TEST
-+      /* fts2_tokenizer() disabled for security reasons. */
-+#else
-    && SQLITE_OK==(rc = sqlite3Fts2InitHashTable(db, pHash, "fts2_tokenizer"))
-+#endif
-    && SQLITE_OK==(rc = sqlite3_overload_function(db, "snippet", -1))
-    && SQLITE_OK==(rc = sqlite3_overload_function(db, "offsets", -1))
-    && SQLITE_OK==(rc = sqlite3_overload_function(db, "optimize", -1))
--- 
-2.2.1
-