Pass the ImageDecoder to the ImageFetcher at creation time.

chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc

Index: chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc
diff --git a/chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc b/chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc
index 57b9416043a2e74ce15e2168542bc9caf86fd8b3..4d77c9d1e115931dc758b2253324a8a82b1ba29a 100644
--- a/chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc
+++ b/chrome/browser/search/suggestions/image_fetcher_impl_browsertest.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/search/suggestions/image_fetcher_impl.h"
+#include "components/image_fetcher/image_fetcher_impl.h"
 
 #include <memory>
 
@@ -13,6 +13,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/test/base/in_process_browser_test.h"
+#include "components/image_fetcher/image_decoder_impl.h"
 #include "components/image_fetcher/image_fetcher_delegate.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -75,7 +76,9 @@ class ImageFetcherImplBrowserTest : public InProcessBrowserTest {
 
   ImageFetcherImpl* CreateImageFetcher() {
     ImageFetcherImpl* fetcher =
-        new ImageFetcherImpl(browser()->profile()->GetRequestContext());
+        new ImageFetcherImpl(
+            base::MakeUnique<suggestions::ImageDecoderImpl>(),
+            browser()->profile()->GetRequestContext());
     fetcher->SetImageFetcherDelegate(&delegate_);
     return fetcher;
   }