Cleanup: Remove unneeded namespaces.

printing/units.cc

Index: printing/units.cc
===================================================================
--- printing/units.cc	(revision 105978)
+++ printing/units.cc	(working copy)
@@ -1,4 +1,4 @@
-// Copyright (c) 2006-2008 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.
 
@@ -55,11 +55,10 @@
 double GetHeaderFooterSegmentWidth(double page_width) {
   // Interstice is left at both ends of the page as well as between
   // each region, so 1 is added.
-  double total_interstice_width =
-      (printing::kSettingHeaderFooterHorizontalRegions + 1) *
-      printing::kSettingHeaderFooterInterstice;
+  double total_interstice_width = (kSettingHeaderFooterHorizontalRegions + 1) *
+      kSettingHeaderFooterInterstice;
   return (page_width - total_interstice_width) /
-             printing::kSettingHeaderFooterHorizontalRegions;
+      kSettingHeaderFooterHorizontalRegions;
 }
 
 }  // namespace printing