Componentize safe_browsing [1]: create component, move messages, constants and switches.

components/safe_browsing/common/safebrowsing_constants.cc

Index: components/safe_browsing/common/safebrowsing_constants.cc
diff --git a/components/safe_browsing/common/safebrowsing_constants.cc b/components/safe_browsing/common/safebrowsing_constants.cc
new file mode 100644
index 0000000000000000000000000000000000000000..543f725e964c14f23d7bb412dc433d0a4fbf71bd
--- /dev/null
+++ b/components/safe_browsing/common/safebrowsing_constants.cc
@@ -0,0 +1,12 @@
+// Copyright 2016 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.
+
+#include "components/safe_browsing/common/safebrowsing_constants.h"
+
+namespace safe_browsing {
+
+const base::FilePath::CharType kSafeBrowsingBaseFilename[] =
+    FILE_PATH_LITERAL("Safe Browsing");
+
+}  // namespace safe_browsing