[Icons NTP] Refactor large_icon_source to extract the logic shared between desktop and Android to f…

chrome/browser/favicon/favicon_service_factory.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/favicon/favicon_service_factory.h"
 
 #include "base/memory/singleton.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/favicon/chrome_favicon_client_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "content/public/browser/browser_context.h"
 
 // static
 favicon::FaviconService* FaviconServiceFactory::GetForProfile(
     Profile* profile,
     ServiceAccessType sat) {
   if (!profile->IsOffTheRecord()) {
     return static_cast<favicon::FaviconService*>(
         GetInstance()->GetServiceForBrowserContext(profile, true));
   } else if (sat == ServiceAccessType::EXPLICIT_ACCESS) {
     // Profile must be OffTheRecord in this case.
     return static_cast<favicon::FaviconService*>(
         GetInstance()->GetServiceForBrowserContext(
             profile->GetOriginalProfile(), true));
   }
 
   // Profile is OffTheRecord without access.
   NOTREACHED() << "This profile is OffTheRecord";
   return NULL;
 }
 
 // static
+favicon::FaviconService* FaviconServiceFactory::GetForBrowserContext(
+    content::BrowserContext* context) {
+  return static_cast<favicon::FaviconService*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
 FaviconServiceFactory* FaviconServiceFactory::GetInstance() {
   return Singleton<FaviconServiceFactory>::get();
 }
 
 FaviconServiceFactory::FaviconServiceFactory()
     : BrowserContextKeyedServiceFactory(
         "FaviconService",
         BrowserContextDependencyManager::GetInstance()) {
   DependsOn(HistoryServiceFactory::GetInstance());
   DependsOn(ChromeFaviconClientFactory::GetInstance());
 }
 
 FaviconServiceFactory::~FaviconServiceFactory() {
 }
 
 KeyedService* FaviconServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   Profile* profile = Profile::FromBrowserContext(context);
   return new favicon::FaviconService(
       ChromeFaviconClientFactory::GetForProfile(profile),
       HistoryServiceFactory::GetForProfile(profile,
                                            ServiceAccessType::EXPLICIT_ACCESS));
 }
 
 bool FaviconServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }