Modify sql unittests to pass on iOS.

sql/sqlite_features_unittest.cc

Index: sql/sqlite_features_unittest.cc
diff --git a/sql/sqlite_features_unittest.cc b/sql/sqlite_features_unittest.cc
index 08e18194594b7078f8704a15ffc6e55541007a51..d3ad7b01e1e9b00bb6e702c33518dad8d10f86ed 100644
--- a/sql/sqlite_features_unittest.cc
+++ b/sql/sqlite_features_unittest.cc
@@ -83,13 +83,16 @@ TEST_F(SQLiteFeaturesTest, NoFTS1) {
       "CREATE VIRTUAL TABLE foo USING fts1(x)"));
 }
 
-// fts2 is used for older history files, so we're signed on for
-// keeping our version up-to-date.
+#if !defined(OS_IOS)
+// fts2 is used for older history files, so we're signed on for keeping our
+// version up-to-date.  iOS does not include fts2, so this test does not run on
+// iOS.
 // TODO(shess): Think up a crazy way to get out from having to support
 // this forever.
 TEST_F(SQLiteFeaturesTest, FTS2) {
   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts2(x)"));
 }
+#endif
 
 // fts3 is used for current history files, and also for WebDatabase.
 TEST_F(SQLiteFeaturesTest, FTS3) {