Sanitize PrefStore interface.

chrome/browser/prefs/command_line_pref_store.h

Index: chrome/browser/prefs/command_line_pref_store.h
diff --git a/chrome/browser/prefs/command_line_pref_store.h b/chrome/browser/prefs/command_line_pref_store.h
index 2ea29ae8d001fa5f822e80bf1c9054c60bf15152..c3baf7a2782b66970c0318de73f98b1fde8f9724 100644
--- a/chrome/browser/prefs/command_line_pref_store.h
+++ b/chrome/browser/prefs/command_line_pref_store.h
@@ -9,21 +9,18 @@
 #include "base/basictypes.h"
 #include "base/command_line.h"
 #include "base/scoped_ptr.h"
-#include "chrome/common/pref_store.h"
+#include "base/values.h"
+#include "chrome/browser/prefs/value_map_pref_store.h"
 
 class DictionaryValue;
 
 // This PrefStore keeps track of preferences set by command-line switches,
 // such as proxy settings.
-class CommandLinePrefStore : public PrefStore {
+class CommandLinePrefStore : public ValueMapPrefStore {
  public:
   explicit CommandLinePrefStore(const CommandLine* command_line);
   virtual ~CommandLinePrefStore();
 
-  // PrefStore methods:
-  virtual PrefReadError ReadPrefs();
-  virtual DictionaryValue* prefs() const { return prefs_.get(); }
-
  protected:
   // Logs a message and returns false if the proxy switches are
   // self-contradictory. Protected so it can be used in unit testing.
@@ -51,8 +48,6 @@ class CommandLinePrefStore : public PrefStore {
   // Weak reference.
   const CommandLine* command_line_;
 
-  scoped_ptr<DictionaryValue> prefs_;
-
   static const StringSwitchToPreferenceMapEntry string_switch_map_[];
 
   DISALLOW_COPY_AND_ASSIGN(CommandLinePrefStore);