Cleanup: Remove references to tests that no longer exists / are unused.

base/prefs/pref_value_store.h

Index: base/prefs/pref_value_store.h
diff --git a/base/prefs/pref_value_store.h b/base/prefs/pref_value_store.h
index 5160115660406ffabafcf582ef105e26bc0231b2..5b832da5007824435f01768cfb48829d4c4a9c58 100644
--- a/base/prefs/pref_value_store.h
+++ b/base/prefs/pref_value_store.h
@@ -11,7 +11,6 @@
 
 #include "base/basictypes.h"
 #include "base/callback.h"
-#include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/prefs/base_prefs_export.h"
 #include "base/prefs/pref_store.h"
@@ -179,13 +178,6 @@ class BASE_PREFS_EXPORT PrefValueStore {
 
   typedef std::map<std::string, base::Value::Type> PrefTypeMap;
 
-  friend class PrefValueStorePolicyRefreshTest;
-  FRIEND_TEST_ALL_PREFIXES(PrefValueStorePolicyRefreshTest, TestPolicyRefresh);
-  FRIEND_TEST_ALL_PREFIXES(PrefValueStorePolicyRefreshTest,
-                           TestRefreshPolicyPrefsCompletion);
-  FRIEND_TEST_ALL_PREFIXES(PrefValueStorePolicyRefreshTest,
-                           TestConcurrentPolicyRefresh);
-
   // Returns true if the preference with the given name has a value in the
   // given PrefStoreType, of the same value type as the preference was
   // registered with.