Use ExtensionRegistryObserver instead of deprecated extension notification from c/b/e/api.

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 101 matching lines @@
   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()) ?
                   kDevDelayMinimum : kReleaseDelayMinimum),
               clock_->Now());
-  AlarmManager::Get(GetProfile())->AddAlarm(
+  AlarmManager::Get(browser_context())->AddAlarm(
       extension_id(), alarm, base::Bind(&AlarmsCreateFunction::Callback, this));
 
   return true;
 }
 
 void AlarmsCreateFunction::Callback() {
   SendResponse(true);
 }
 
 bool AlarmsGetFunction::RunAsync() {
   scoped_ptr<alarms::Get::Params> params(alarms::Get::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   std::string name = params->name.get() ? *params->name : kDefaultAlarmName;
-  AlarmManager::Get(GetProfile())
+  AlarmManager::Get(browser_context())
       ->GetAlarm(extension_id(),
                  name,
                  base::Bind(&AlarmsGetFunction::Callback, this, name));
 
   return true;
 }
 
 void AlarmsGetFunction::Callback(
     const std::string& name, extensions::Alarm* alarm) {
   if (alarm) {
     results_ = alarms::Get::Results::Create(*alarm->js_alarm);
   }
   SendResponse(true);
 }
 
 bool AlarmsGetAllFunction::RunAsync() {
-  AlarmManager::Get(GetProfile())->GetAllAlarms(
+  AlarmManager::Get(browser_context())->GetAllAlarms(
       extension_id(), base::Bind(&AlarmsGetAllFunction::Callback, this));
   return true;
 }
 
 void AlarmsGetAllFunction::Callback(const AlarmList* alarms) {
   if (alarms) {
     std::vector<linked_ptr<extensions::api::alarms::Alarm> > create_arg;
     create_arg.reserve(alarms->size());
     for (size_t i = 0, size = alarms->size(); i < size; ++i) {
       create_arg.push_back((*alarms)[i].js_alarm);
     }
     results_ = alarms::GetAll::Results::Create(create_arg);
   } else {
     SetResult(new base::ListValue());
   }
   SendResponse(true);
 }
 
 bool AlarmsClearFunction::RunAsync() {
   scoped_ptr<alarms::Clear::Params> params(
       alarms::Clear::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   std::string name = params->name.get() ? *params->name : kDefaultAlarmName;
-  AlarmManager::Get(GetProfile())
+  AlarmManager::Get(browser_context())
       ->RemoveAlarm(extension_id(),
                     name,
                     base::Bind(&AlarmsClearFunction::Callback, this, name));
 
   return true;
 }
 
 void AlarmsClearFunction::Callback(const std::string& name, bool success) {
   SetResult(new base::FundamentalValue(success));
   SendResponse(true);
 }
 
 bool AlarmsClearAllFunction::RunAsync() {
-  AlarmManager::Get(GetProfile())->RemoveAllAlarms(
+  AlarmManager::Get(browser_context())->RemoveAllAlarms(
       extension_id(), base::Bind(&AlarmsClearAllFunction::Callback, this));
   return true;
 }
 
 void AlarmsClearAllFunction::Callback() {
   SetResult(new base::FundamentalValue(true));
   SendResponse(true);
 }
 
 }  // namespace extensions