Spelling correction: "nonexistant" -> "nonexistent".

app/sql/connection_unittest.cc

Index: app/sql/connection_unittest.cc
diff --git a/app/sql/connection_unittest.cc b/app/sql/connection_unittest.cc
index 5cd55a7d5bc275b9feda753d04094b97f1b8f41c..0a14a9a4a8ba4f81759f4f9d0626fed562a72ee3 100644
--- a/app/sql/connection_unittest.cc
+++ b/app/sql/connection_unittest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
@@ -91,7 +91,7 @@ TEST_F(SQLConnectionTest, DoesStuffExist) {
   EXPECT_FALSE(db().DoesColumnExist("foo", "bar"));
   EXPECT_TRUE(db().DoesColumnExist("foo", "a"));
 
-  // Testing for a column on a nonexistant table.
+  // Testing for a column on a nonexistent table.
   EXPECT_FALSE(db().DoesColumnExist("bar", "b"));
 }