Create the IOSImageDataFetcher

ios/chrome/browser/suggestions/image_fetcher_impl.h

Index: ios/chrome/browser/suggestions/image_fetcher_impl.h
diff --git a/ios/chrome/browser/suggestions/image_fetcher_impl.h b/ios/chrome/browser/suggestions/image_fetcher_impl.h
index dfa1ae5fa7c5d6fa057b55b2478261ed118f8467..fdd04de250ae99524b0e6f05b739baa21568283a 100644
--- a/ios/chrome/browser/suggestions/image_fetcher_impl.h
+++ b/ios/chrome/browser/suggestions/image_fetcher_impl.h
@@ -24,16 +24,13 @@ class Image;
 
 namespace image_fetcher {
 class ImageFetcherDelegate;
+class IOSImageDataFetcher;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }
 
-namespace web {
-class ImageDataFetcher;
-}
-
 namespace suggestions {
 
 // A class used to fetch server images asynchronously.
@@ -55,7 +52,7 @@ class ImageFetcherImpl : public image_fetcher::ImageFetcher {
       override;
 
  private:
-  std::unique_ptr<web::ImageDataFetcher> image_fetcher_;
+  std::unique_ptr<image_fetcher::IOSImageDataFetcher> image_fetcher_;
 
   image_fetcher::ImageFetcherDelegate* delegate_;