Extend FaviconService to support fetching favicons from a Google server

chrome/browser/favicon/favicon_service_factory.cc

Index: chrome/browser/favicon/favicon_service_factory.cc
diff --git a/chrome/browser/favicon/favicon_service_factory.cc b/chrome/browser/favicon/favicon_service_factory.cc
index 81528e4c69df599acce840c7d20146b536b1bbb4..00139213bcd91a9a7378ceaba1d11cbd367b12b6 100644
--- a/chrome/browser/favicon/favicon_service_factory.cc
+++ b/chrome/browser/favicon/favicon_service_factory.cc
@@ -9,8 +9,11 @@
 #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"
 
@@ -19,10 +22,14 @@ 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