[Suggestions] Create ImageEncoder, to abstract away image encode/decode.

chrome/browser/search/suggestions/suggestions_service_factory.cc

Index: chrome/browser/search/suggestions/suggestions_service_factory.cc
diff --git a/chrome/browser/search/suggestions/suggestions_service_factory.cc b/chrome/browser/search/suggestions/suggestions_service_factory.cc
index 4a98018a237455c7f7f9303262aefff74013e4cd..778f7d1f22119aa5515e8f886ff5b1906fde3a86 100644
--- a/chrome/browser/search/suggestions/suggestions_service_factory.cc
+++ b/chrome/browser/search/suggestions/suggestions_service_factory.cc
@@ -14,6 +14,7 @@
 #include "components/leveldb_proto/proto_database_impl.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/suggestions/blacklist_store.h"
+#include "components/suggestions/image_encoder.h"
 #include "components/suggestions/image_fetcher.h"
 #include "components/suggestions/image_manager.h"
 #include "components/suggestions/proto/suggestions.pb.h"
@@ -72,10 +73,12 @@ KeyedService* SuggestionsServiceFactory::BuildServiceInstanceFor(
   base::FilePath database_dir(
       the_profile->GetPath().Append(FILE_PATH_LITERAL("Thumbnails")));
 
+  scoped_ptr<ImageEncoder> image_encoder(new ImageEncoder());
   scoped_ptr<ImageFetcherImpl> image_fetcher(
       new ImageFetcherImpl(the_profile->GetRequestContext()));
   scoped_ptr<ImageManager> thumbnail_manager(new ImageManager(
       image_fetcher.PassAs<ImageFetcher>(),
+      image_encoder.Pass(),
       db.PassAs<leveldb_proto::ProtoDatabase<ImageData> >(), database_dir));
   return new SuggestionsService(
       the_profile->GetRequestContext(), suggestions_store.Pass(),