Reverts debugging code added in hopes of tracking crash. This also

chrome/common/json_pref_store.cc

Index: chrome/common/json_pref_store.cc
diff --git a/chrome/common/json_pref_store.cc b/chrome/common/json_pref_store.cc
index 8767fc56f321ca27a1d72c957afda860e092f90f..f3bd776dce11acb11d5dda4a116f3ce9ae683929 100644
--- a/chrome/common/json_pref_store.cc
+++ b/chrome/common/json_pref_store.cc
@@ -148,7 +148,6 @@ JsonPrefStore::JsonPrefStore(const FilePath& filename,
 }
 
 JsonPrefStore::~JsonPrefStore() {
-  ResetCheckIfValueDestroyed(prefs_.get());
   CommitPendingWrite();
 }
 
@@ -181,20 +180,29 @@ PrefStore::ReadResult JsonPrefStore::GetMutableValue(const std::string& key,
 }
 
 void JsonPrefStore::SetValue(const std::string& key, Value* value) {
-  SetValueImpl(key, value, SET_VALUE_NOTIFY);
+  DCHECK(value);
+  scoped_ptr<Value> new_value(value);
+  Value* old_value = NULL;
+  prefs_->Get(key, &old_value);
+  if (!old_value || !value->Equals(old_value)) {
+    prefs_->Set(key, new_value.release());
+    FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key));
+  }
 }
 
 void JsonPrefStore::SetValueSilently(const std::string& key, Value* value) {
-  SetValueImpl(key, value, SET_VALUE_DONT_NOTIFY);
+  DCHECK(value);
+  scoped_ptr<Value> new_value(value);
+  Value* old_value = NULL;
+  prefs_->Get(key, &old_value);
+  if (!old_value || !value->Equals(old_value))
+    prefs_->Set(key, new_value.release());
 }
 
 void JsonPrefStore::RemoveValue(const std::string& key) {
-  Value* value = NULL;
-  bool path_existed = prefs_->Remove(key, &value);
-  scoped_ptr<Value> owned_value(value);
-  ResetCheckIfValueDestroyed(value);
-  if (path_existed)
+  if (prefs_->Remove(key, NULL)) {
     FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key));
+  }
 }
 
 bool JsonPrefStore::ReadOnly() const {
@@ -224,7 +232,6 @@ void JsonPrefStore::OnFileRead(Value* value_owned,
       break;
     case PREF_READ_ERROR_NONE:
       DCHECK(value.get());
-      ResetCheckIfValueDestroyed(prefs_.get());
       prefs_.reset(static_cast<DictionaryValue*>(value.release()));
       break;
     case PREF_READ_ERROR_NO_FILE:
@@ -303,13 +310,6 @@ void JsonPrefStore::ReportValueChanged(const std::string& key) {
   FOR_EACH_OBSERVER(PrefStore::Observer, observers_, OnPrefValueChanged(key));
 }
 
-void JsonPrefStore::CheckIfValueDestroyed(const std::string& key) {
-  Value* value = NULL;
-  CHECK_EQ(READ_OK, GetMutableValue(key, &value));
-  CHECK(value);
-  value->set_check_on_delete(true);
-}
-
 bool JsonPrefStore::SerializeData(std::string* output) {
   // TODO(tc): Do we want to prune webkit preferences that match the default
   // value?
@@ -318,52 +318,3 @@ bool JsonPrefStore::SerializeData(std::string* output) {
   scoped_ptr<DictionaryValue> copy(prefs_->DeepCopyWithoutEmptyChildren());
   return serializer.Serialize(*(copy.get()));
 }
-
-void JsonPrefStore::SetValueImpl(const std::string& key,
-                                 Value* value,
-                                 SetValueType type) {
-  DCHECK(value);
-  scoped_ptr<Value> new_value(value);
-  Value* old_value = NULL;
-  prefs_->Get(key, &old_value);
-  ResetCheckIfValueDestroyed(old_value);
-  if (!old_value || !value->Equals(old_value)) {
-    prefs_->Set(key, new_value.release());
-    if (type == SET_VALUE_NOTIFY)
-      ReportValueChanged(key);
-  }
-}
-
-// static
-void JsonPrefStore::ResetCheckIfValueDestroyed(Value* value) {
-  if (!value)
-    return;
-
-  value->set_check_on_delete(false);
-
-  switch (value->GetType()) {
-    case Value::TYPE_DICTIONARY: {
-      DictionaryValue* dictionary = static_cast<DictionaryValue*>(value);
-      for (DictionaryValue::key_iterator i = dictionary->begin_keys();
-           i != dictionary->end_keys(); ++i) {
-        Value* child_value = NULL;
-        dictionary->GetWithoutPathExpansion(*i, &child_value);
-        ResetCheckIfValueDestroyed(child_value);
-      }
-      break;
-    }
-
-    case Value::TYPE_LIST: {
-      ListValue* list = static_cast<ListValue*>(value);
-      for (size_t i = 0; i < list->GetSize(); ++i) {
-        Value* child_value = NULL;
-        list->Get(i, &child_value);
-        ResetCheckIfValueDestroyed(child_value);
-      }
-      break;
-    }
-
-    default:
-      break;
-  }
-}