Pass the ImageDecoder to the ImageFetcher at creation time.

chrome/browser/search/thumbnail_source.cc

Index: chrome/browser/search/thumbnail_source.cc
diff --git a/chrome/browser/search/thumbnail_source.cc b/chrome/browser/search/thumbnail_source.cc
index 3d9faef32b4b53f1a03ae22f410e11713bfa2644..4ce99cc275e21ad51f81f9e653eb5e7a22df5e42 100644
--- a/chrome/browser/search/thumbnail_source.cc
+++ b/chrome/browser/search/thumbnail_source.cc
@@ -7,14 +7,16 @@
 #include <stddef.h>
 
 #include "base/callback.h"
+#include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/instant_io_context.h"
-#include "chrome/browser/search/suggestions/image_fetcher_impl.h"
+#include "chrome/browser/search/suggestions/image_decoder_impl.h"
 #include "chrome/browser/thumbnails/thumbnail_service.h"
 #include "chrome/browser/thumbnails/thumbnail_service_factory.h"
 #include "chrome/common/url_constants.h"
+#include "components/image_fetcher/image_fetcher_impl.h"
 #include "components/suggestions/image_encoder.h"
 #include "net/url_request/url_request.h"
 #include "ui/gfx/image/image.h"
@@ -30,7 +32,9 @@ ThumbnailSource::ThumbnailSource(Profile* profile, bool capture_thumbnails)
       capture_thumbnails_(capture_thumbnails),
       weak_ptr_factory_(this) {
   image_fetcher_.reset(
-      new suggestions::ImageFetcherImpl(profile->GetRequestContext()));
+      new image_fetcher::ImageFetcherImpl(
+          base::MakeUnique<suggestions::ImageDecoderImpl>(),
+          profile->GetRequestContext()));
 }
 
 ThumbnailSource::~ThumbnailSource() {