Use IOSImageDataFetcherWrapper

ios/public/provider/chrome/browser/native_app_launcher/fake_native_app_metadata.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "ios/public/provider/chrome/browser/native_app_launcher/fake_native_app_metadata.h"
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/sys_string_conversions.h"
 #include "url/gurl.h"
 
@@ skipping 15 matching lines @@
 }
 
 - (NSString*)appStoreURL {
   return nil;
 }
 
 - (NSURL*)appURLforURL:(NSURL*)url {
   return nil;
 }
 
-- (void)fetchSmallIconWithContext:(net::URLRequestContextGetter*)contextGetter
-                  completionBlock:(void (^)(UIImage*))block {
+- (void)fetchSmallIconWithImageFetcher:
+            (image_fetcher::IOSImageDataFetcherWrapper*)imageFetcher
+                       completionBlock:(void (^)(UIImage*))block {
   block(nil);
 }
 
 - (BOOL)canOpenURL:(const GURL&)url {
   if (!url.is_valid())
     return YES;
   GURL appUrl(base::SysNSStringToUTF8(_appName) + ":");
   if (url.spec() == appUrl.spec()) {
     return YES;
   } else {
@@ skipping 19 matching lines @@
   return nil;
 }
 
 - (void)willBeShownInInfobarOfType:(NativeAppControllerType)type {
 }
 
 - (void)updateWithUserAction:(NativeAppActionType)userAction {
 }
 
 @end