Delta from the first fix.

chrome/browser/extensions/api/alarms/alarms_api.cc

 // Copyright (c) 2012 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/extensions/api/alarms/alarms_api.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/time/clock.h"
 #include "base/time/default_clock.h"
 #include "base/values.h"
@@ skipping 90 matching lines @@
 
 bool AlarmsCreateFunction::RunImpl() {
   scoped_ptr<alarms::Create::Params> params(
       alarms::Create::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   const std::string& alarm_name =
       params->name.get() ? *params->name : kDefaultAlarmName;
   std::vector<std::string> warnings;
   if (!ValidateAlarmCreateInfo(
           alarm_name, params->alarm_info, GetExtension(), &error_, &warnings)) {
-    SendResponse(false);
     return false;
   }
   for (std::vector<std::string>::const_iterator it = warnings.begin();
        it != warnings.end(); ++it)
     WriteToConsole(content::CONSOLE_MESSAGE_LEVEL_WARNING, *it);
 
   Alarm alarm(alarm_name,
               params->alarm_info,
               base::TimeDelta::FromMinutes(
                   Manifest::IsUnpackedLocation(GetExtension()->location()) ?
@@ skipping 74 matching lines @@
   AlarmManager::Get(profile())->RemoveAllAlarms(extension_id(), base::Bind(
       &AlarmsClearAllFunction::Callback, this));
   return true;
 }
 
 void AlarmsClearAllFunction::Callback() {
   SendResponse(true);
 }
 
 }  // namespace extensions