Add initial device policy infrastructure.

chrome/browser/prefs/pref_member.h

Index: chrome/browser/prefs/pref_member.h
diff --git a/chrome/browser/prefs/pref_member.h b/chrome/browser/prefs/pref_member.h
index 082ec6e4df2525c9cfdb528570e790938b83fe08..02fe8bbd4ea9a561efb738c661f902794d21a7f0 100644
--- a/chrome/browser/prefs/pref_member.h
+++ b/chrome/browser/prefs/pref_member.h
@@ -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.
 //
@@ -140,6 +140,11 @@ class PrefMember : public subtle::PrefMemberBase {
     }
   }
 
+  // Returns the pref name.
+  const std::string& GetPrefName() const {
+    return pref_name();
+  }
+
  protected:
   // This methods is used to do the actual sync with pref of the specified type.
   virtual void UpdatePref(const ValueType& value) = 0;