Extend FaviconService to support fetching favicons from a Google server

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/ptr_util.h"
 #include "base/memory/singleton.h"
 #include "chrome/browser/favicon/chrome_favicon_client.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/search/suggestions/image_decoder_impl.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/history/core/browser/history_service.h"
+#include "components/image_fetcher/image_decoder.h"
+#include "components/image_fetcher/image_fetcher_impl.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/prefs/pref_service.h"
 
 namespace {
 
 std::unique_ptr<KeyedService> BuildFaviconService(
     content::BrowserContext* context) {
   Profile* profile = Profile::FromBrowserContext(context);
+
   return base::MakeUnique<favicon::FaviconService>(
       base::WrapUnique(new ChromeFaviconClient(profile)),
       HistoryServiceFactory::GetForProfile(profile,
-                                           ServiceAccessType::EXPLICIT_ACCESS));
+                                           ServiceAccessType::EXPLICIT_ACCESS),
+      base::MakeUnique<image_fetcher::ImageFetcherImpl>(
+          base::MakeUnique<suggestions::ImageDecoderImpl>(),
+          profile->GetRequestContext()));
 }
 
 }  // namespace
 
 // static
 favicon::FaviconService* FaviconServiceFactory::GetForProfile(
     Profile* profile,
     ServiceAccessType sat) {
   if (!profile->IsOffTheRecord()) {
     return static_cast<favicon::FaviconService*>(
@@ skipping 32 matching lines @@
 }
 
 KeyedService* FaviconServiceFactory::BuildServiceInstanceFor(
     content::BrowserContext* context) const {
   return BuildFaviconService(context).release();
 }
 
 bool FaviconServiceFactory::ServiceIsNULLWhileTesting() const {
   return true;
 }