Import SQLite 3.8.7.4.

third_party/sqlite/patches/0008-fts3-Disable-fts3_tokenizer-and-fts4.patch

-From b11ecfada70198bc5b6dc8419d2b7b3c7f6542b8 Mon Sep 17 00:00:00 2001
+From c18bc2961fbb401a1941e736d81bd048c3b82e88 Mon Sep 17 00:00:00 2001
 From: Scott Hess <shess@chromium.org>
 Date: Tue, 16 Dec 2014 13:02:27 -0800
-Subject: [PATCH 10/23] [fts3] Disable fts3_tokenizer and fts4.
+Subject: [PATCH 08/16] [fts3] Disable fts3_tokenizer and fts4.
 
 fts3_tokenizer allows a SQLite user to specify a pointer to call as a
 function, which has obvious sercurity implications.  Disable fts4 until
-someone explicitly decides to own support for it.
+someone explicitly decides to own support for it.  Disable fts3tokenize
+virtual table until someone explicitly decides to own support for it.
 
 No original review URL because this was part of the initial Chromium commit.
 ---
  third_party/sqlite/src/ext/fts3/fts3.c | 9 +++++++++
  1 file changed, 9 insertions(+)
 
 diff --git a/third_party/sqlite/src/ext/fts3/fts3.c b/third_party/sqlite/src/ext/fts3/fts3.c
-index 20da051..7accb11 100644
+index 2b93c62..dbd2835 100644
 --- a/third_party/sqlite/src/ext/fts3/fts3.c
 +++ b/third_party/sqlite/src/ext/fts3/fts3.c
-@@ -291,6 +291,7 @@
- ** deletions and duplications.  This would basically be a forced merge
- ** into a single segment.
+@@ -287,6 +287,7 @@
+ ** query logic likewise merges doclists so that newer data knocks out
+ ** older data.
  */
 +#define CHROMIUM_FTS3_CHANGES 1
  
+ #include "fts3Int.h"
  #if !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_FTS3)
- 
-@@ -3646,7 +3647,11 @@ int sqlite3Fts3Init(sqlite3 *db){
+@@ -3828,7 +3829,11 @@ int sqlite3Fts3Init(sqlite3 *db){
    ** module with sqlite.
    */
    if( SQLITE_OK==rc 
 +#if CHROMIUM_FTS3_CHANGES && !SQLITE_TEST
 +      /* fts3_tokenizer() disabled for security reasons. */
 +#else
     && SQLITE_OK==(rc = sqlite3Fts3InitHashTable(db, pHash, "fts3_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, "matchinfo", 1))
-@@ -3656,11 +3661,15 @@ int sqlite3Fts3Init(sqlite3 *db){
+@@ -3838,6 +3843,9 @@ int sqlite3Fts3Init(sqlite3 *db){
      rc = sqlite3_create_module_v2(
          db, "fts3", &fts3Module, (void *)pHash, hashDestroy
      );
 +#if CHROMIUM_FTS3_CHANGES && !SQLITE_TEST
-+    /* Disable fts4 pending review. */
++    /* Disable fts4 and tokenizer vtab pending review. */
 +#else
      if( rc==SQLITE_OK ){
        rc = sqlite3_create_module_v2(
            db, "fts4", &fts3Module, (void *)pHash, 0
-       );
+@@ -3846,6 +3854,7 @@ int sqlite3Fts3Init(sqlite3 *db){
+     if( rc==SQLITE_OK ){
+       rc = sqlite3Fts3InitTok(db, (void *)pHash);
      }
 +#endif
      return rc;
    }
  
 -- 
 2.2.1