Clang needs dtor in the cc file (build fix)

BUG=none
TEST=one

TBR=shess
Review URL: http://codereview.chromium.org/7131008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@88145 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/base/version.cc b/base/version.cc
index 74c570c..cdd15a0 100644
--- a/base/version.cc
+++ b/base/version.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
@@ -14,6 +14,9 @@
 Version::Version() {
 }
 
+Version::~Version() {
+}
+
 Version::Version(const std::string& version_str) {
   std::vector<std::string> numbers;
   base::SplitString(version_str, '.', &numbers);