Move ProfileKeyedAPI implementations to take BrowserContext in the constructor (part 2).

chrome/browser/extensions/api/hotword_private/hotword_private_api.cc

 // Copyright 2014 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/hotword_private/hotword_private_api.h"
 
 #include "base/lazy_instance.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/hotword_service.h"
 #include "chrome/browser/search/hotword_service_factory.h"
 #include "chrome/common/pref_names.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_system.h"
 
 namespace extensions {
 
 namespace OnEnabledChanged =
     api::hotword_private::OnEnabledChanged;
 
 static base::LazyInstance<
     ProfileKeyedAPIFactory<HotwordPrivateEventService> > g_factory =
         LAZY_INSTANCE_INITIALIZER;
 
-HotwordPrivateEventService::HotwordPrivateEventService(Profile* profile)
-    : profile_(profile) {
-  pref_change_registrar_.Init(profile->GetPrefs());
+HotwordPrivateEventService::HotwordPrivateEventService(
+    content::BrowserContext* context)
+    : profile_(Profile::FromBrowserContext(context)) {
+  pref_change_registrar_.Init(profile_->GetPrefs());
   pref_change_registrar_.Add(
       prefs::kHotwordSearchEnabled,
       base::Bind(&HotwordPrivateEventService::OnEnabledChanged,
                  base::Unretained(this)));
 }
 
 HotwordPrivateEventService::~HotwordPrivateEventService() {
 }
 
 void HotwordPrivateEventService::Shutdown() {
@@ skipping 49 matching lines @@
 
   PrefService* prefs = GetProfile()->GetPrefs();
   result.enabled =
       prefs->GetBoolean(prefs::kHotwordSearchEnabled);
 
   SetResult(result.ToValue().release());
   return true;
 }
 
 }  // namespace extensions