Revert of Send a TrackedPreference incident when registry pref validation fails.

components/user_prefs/tracked/mock_validation_delegate.h

Index: components/user_prefs/tracked/mock_validation_delegate.h
diff --git a/components/user_prefs/tracked/mock_validation_delegate.h b/components/user_prefs/tracked/mock_validation_delegate.h
index 2070c5a97ab18b7515b36fa85a61e20a0ea61017..0b8cb12ce436486192c7df7260af13b40b26aa18 100644
--- a/components/user_prefs/tracked/mock_validation_delegate.h
+++ b/components/user_prefs/tracked/mock_validation_delegate.h
@@ -20,21 +20,17 @@
 class MockValidationDelegate : public TrackedPreferenceValidationDelegate {
  public:
   struct ValidationEvent {
-    ValidationEvent(
-        const std::string& path,
-        PrefHashStoreTransaction::ValueState state,
-        PrefHashStoreTransaction::ValueState external_validation_state,
-        bool is_personal,
-        PrefHashFilter::PrefTrackingStrategy tracking_strategy)
+    ValidationEvent(const std::string& path,
+                    PrefHashStoreTransaction::ValueState state,
+                    bool is_personal,
+                    PrefHashFilter::PrefTrackingStrategy tracking_strategy)
         : pref_path(path),
           value_state(state),
-          external_validation_value_state(external_validation_state),
           is_personal(is_personal),
           strategy(tracking_strategy) {}
 
     std::string pref_path;
     PrefHashStoreTransaction::ValueState value_state;
-    PrefHashStoreTransaction::ValueState external_validation_value_state;
     bool is_personal;
     PrefHashFilter::PrefTrackingStrategy strategy;
   };
@@ -49,10 +45,6 @@
   size_t CountValidationsOfState(
       PrefHashStoreTransaction::ValueState value_state) const;
 
-  // Returns the number of external validations of a given value state.
-  size_t CountExternalValidationsOfState(
-      PrefHashStoreTransaction::ValueState value_state) const;
-
   // Returns the event for the preference with a given path.
   const ValidationEvent* GetEventForPath(const std::string& pref_path) const;
 
@@ -61,24 +53,20 @@
       const std::string& pref_path,
       const base::Value* value,
       PrefHashStoreTransaction::ValueState value_state,
-      PrefHashStoreTransaction::ValueState external_validation_value_state,
       bool is_personal) override;
   void OnSplitPreferenceValidation(
       const std::string& pref_path,
       const base::DictionaryValue* dict_value,
       const std::vector<std::string>& invalid_keys,
       PrefHashStoreTransaction::ValueState value_state,
-      PrefHashStoreTransaction::ValueState external_validation_value_state,
       bool is_personal) override;
 
  private:
   // Adds a new validation event.
-  void RecordValidation(
-      const std::string& pref_path,
-      PrefHashStoreTransaction::ValueState value_state,
-      PrefHashStoreTransaction::ValueState external_validation_value_state,
-      bool is_personal,
-      PrefHashFilter::PrefTrackingStrategy strategy);
+  void RecordValidation(const std::string& pref_path,
+                        PrefHashStoreTransaction::ValueState value_state,
+                        bool is_personal,
+                        PrefHashFilter::PrefTrackingStrategy strategy);
 
   std::vector<ValidationEvent> validations_;