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

chrome/browser/prefs/pref_service.cc

 // 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.
 
 #include "chrome/browser/prefs/pref_service.h"
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
@@ skipping 820 matching lines @@
     return;
   }
 
   user_pref_store_->SetValue(path, owned_value.release());
 }
 
 SyncableService* PrefService::GetSyncableService() {
   return pref_sync_associator_.get();
 }
 
-void PrefService::CheckIfValueDestroyed(const char* path,
-                                        base::Value::Type type) {
-  // Make sure the value exists.
-  Value* value = GetMutableUserPref(path, type);
-  if (!value) {
-    const Preference* pref = FindPreference(path);
-    CHECK(pref);
-    CHECK_EQ(type, pref->GetType());
-    CHECK(false);
-  }
-
-  user_pref_store_->CheckIfValueDestroyed(path);
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 // PrefService::Preference
 
 PrefService::Preference::Preference(const PrefService* service,
                                     const char* name,
                                     base::Value::Type type)
       : name_(name),
         type_(type),
         pref_service_(service) {
   DCHECK(name);
@@ skipping 43 matching lines @@
   return pref_value_store()->PrefValueFromDefaultStore(name_.c_str());
 }
 
 bool PrefService::Preference::IsUserModifiable() const {
   return pref_value_store()->PrefValueUserModifiable(name_.c_str());
 }
 
 bool PrefService::Preference::IsExtensionModifiable() const {
   return pref_value_store()->PrefValueExtensionModifiable(name_.c_str());
 }