Move iOS ImageFetcher to ios/web/public

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 a6902d586751e1f1396cfbd72a326f4dc709dc65..dfa1ae5fa7c5d6fa057b55b2478261ed118f8467 100644
--- a/ios/chrome/browser/suggestions/image_fetcher_impl.h
+++ b/ios/chrome/browser/suggestions/image_fetcher_impl.h
@@ -13,7 +13,6 @@
 #include "components/image_fetcher/image_fetcher.h"
 
 class GURL;
-class ImageFetcher;
 
 namespace base {
 class SequencedWorkerPool;
@@ -31,6 +30,10 @@ namespace net {
 class URLRequestContextGetter;
 }
 
+namespace web {
+class ImageDataFetcher;
+}
+
 namespace suggestions {
 
 // A class used to fetch server images asynchronously.
@@ -52,7 +55,7 @@ class ImageFetcherImpl : public image_fetcher::ImageFetcher {
       override;
 
  private:
-  std::unique_ptr<::ImageFetcher> imageFetcher_;
+  std::unique_ptr<web::ImageDataFetcher> image_fetcher_;
 
   image_fetcher::ImageFetcherDelegate* delegate_;