Move base/values.h into the base namespace.

printing/printing_context_cairo.h

Index: printing/printing_context_cairo.h
===================================================================
--- printing/printing_context_cairo.h	(revision 92173)
+++ printing/printing_context_cairo.h	(working copy)
@@ -9,6 +9,10 @@
 
 #include "printing/printing_context.h"
 
+namespace base {
+class DictionaryValue;
+}
+
 namespace printing {
 
 class Metafile;
@@ -35,7 +39,7 @@
                                   bool has_selection,
                                   PrintSettingsCallback* callback);
   virtual Result UseDefaultSettings();
-  virtual Result UpdatePrintSettings(const DictionaryValue& job_settings,
+  virtual Result UpdatePrintSettings(const base::DictionaryValue& job_settings,
                                      const PageRanges& ranges);
   virtual Result InitWithSettings(const PrintSettings& settings);
   virtual Result NewDocument(const string16& document_name);