Import SQLite 3.8.7.4.

third_party/sqlite/sqlite.gyp

Index: third_party/sqlite/sqlite.gyp
diff --git a/third_party/sqlite/sqlite.gyp b/third_party/sqlite/sqlite.gyp
index bb18457a34cce499db03b65091b0b162bb2e6085..349c2412c00bf067088188e0b6e0abbd0093d741 100644
--- a/third_party/sqlite/sqlite.gyp
+++ b/third_party/sqlite/sqlite.gyp
@@ -11,12 +11,31 @@
     'defines': [
       'SQLITE_CORE',
       'SQLITE_ENABLE_FTS3',
+      # New unicode61 tokenizer with built-in tables.
+      'SQLITE_DISABLE_FTS3_UNICODE',
+      # Chromium currently does not enable fts4, disable extra code.
+      'SQLITE_DISABLE_FTS4_DEFERRED',
       'SQLITE_ENABLE_ICU',
       'SQLITE_ENABLE_MEMORY_MANAGEMENT',
       'SQLITE_SECURE_DELETE',
+      # Custom flag to tweak pcache pools.
+      # TODO(shess): This shouldn't use faux-SQLite naming.      
       'SQLITE_SEPARATE_CACHE_POOLS',
+      # TODO(shess): SQLite adds mutexes to protect structures which cross
+      # threads.  In theory Chromium should be able to turn this off for a
+      # slight speed boost.
       'THREADSAFE',
+      # TODO(shess): Figure out why this is here.  Nobody references it
+      # directly.
       '_HAS_EXCEPTIONS=0',
+      # NOTE(shess): Some defines can affect the amalgamation.  Those should be
+      # added to google_generate_amalgamation.sh, and the amalgamation
+      # re-generated.  Usually this involves disabling features which include
+      # keywords or syntax, for instance SQLITE_OMIT_VIRTUALTABLE omits the
+      # virtual table syntax entirely.  Missing an item usually results in
+      # syntax working but execution failing.  Review:
+      #   src/src/parse.py
+      #   src/tool/mkkeywordhash.c
     ],
   },
   'targets': [