RefCounted types should not have public destructors, chrome/browser/ part 5

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 373490d4b276e8f78a56225866d668334f23e13a..6ac8a169debe0581836ab6215a8825d908886b84 100644
--- a/chrome/browser/prefs/command_line_pref_store.h
+++ b/chrome/browser/prefs/command_line_pref_store.h
@@ -17,14 +17,17 @@
 class CommandLinePrefStore : public ValueMapPrefStore {
  public:
   explicit CommandLinePrefStore(const CommandLine* command_line);
-  virtual ~CommandLinePrefStore();
 
  protected:
+  virtual ~CommandLinePrefStore();
+
   // Logs a message and returns false if the proxy switches are
   // self-contradictory. Protected so it can be used in unit testing.
   bool ValidateProxySwitches();
 
  private:
+  friend class TestCommandLinePrefStore;
+
   struct StringSwitchToPreferenceMapEntry {
     const char* switch_name;
     const char* preference_path;