[sql] Stop building fts2.

third_party/sqlite/BUILD.gn

 # Copyright (c) 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 config("sqlite_config") {
   include_dirs = [ "." ]
 }
 
 source_set("sqlite") {
   sources = [
     "amalgamation/sqlite3.c",
     "amalgamation/sqlite3.h",
-
-    # fts2.c currently has a lot of conflicts when added to
-    # the amalgamation.  It is probably not worth fixing that.
-    "src/ext/fts2/fts2.c",
-    "src/ext/fts2/fts2.h",
-    "src/ext/fts2/fts2_hash.c",
-    "src/ext/fts2/fts2_hash.h",
-    "src/ext/fts2/fts2_icu.c",
-    "src/ext/fts2/fts2_porter.c",
-    "src/ext/fts2/fts2_tokenizer.c",
-    "src/ext/fts2/fts2_tokenizer.h",
-    "src/ext/fts2/fts2_tokenizer1.c",
   ]
 
   cflags = []
   defines = [
     "SQLITE_CORE",
-    "SQLITE_ENABLE_BROKEN_FTS2",
-    "SQLITE_ENABLE_FTS2",
     "SQLITE_ENABLE_FTS3",
     "SQLITE_DISABLE_FTS3_UNICODE",
     "SQLITE_DISABLE_FTS4_DEFERRED",
     "SQLITE_ENABLE_ICU",
     "SQLITE_ENABLE_MEMORY_MANAGEMENT",
     "SQLITE_SECURE_DELETE",
     "SQLITE_SEPARATE_CACHE_POOLS",
     "THREADSAFE",
     "_HAS_EXCEPTIONS=0",
   ]
   if (is_chromeos) {
     defines += [
       # Despite obvious warnings about not using this flag in deployment, we
       # are turning off sync in ChromeOS and relying on the underlying
       # journaling filesystem to do error recovery properly. It's much faster.
       "SQLITE_NO_SYNC",
     ]
   }
   if (is_posix) {
     defines += [
       # Allow xSleep() call on Unix to use usleep() rather than sleep(), so it
       # will have microsecond precision.  Should only affect contended databases
       # via the busy callback.  Browser profile databases are mostly exclusive,
       # but renderer databases may allow for contention.
       "HAVE_USLEEP=1",
     ]
   }
 
-  include_dirs = [
-    "amalgamation",
-    "src/src",  # Needed for fts2 to build.
-  ]
+  include_dirs = [ "amalgamation" ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
   configs += [ "//build/config/compiler:no_chromium_code" ]
 
   if (is_linux) {
     cflags += [
       # SQLite doesn"t believe in compiler warnings,
       # preferring testing.
       #   http://www.sqlite.org/faq.html#q17
       "-Wno-int-to-pointer-cast",
@@ skipping 39 matching lines @@
 if (is_ios) {
   source_set("sqlite_regexp") {
     sources = [
       "src/ext/icu/icu.c",
     ]
     deps = [
       "//third_party/icu",
     ]
   }
 }