Move WebpDecoder from ios/web to components/image_fetcher

ios/chrome/browser/suggestions/ios_image_decoder_impl.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.
 
 #include "ios/chrome/browser/suggestions/ios_image_decoder_impl.h"
 
 #import <UIKit/UIKit.h>
 
 #include "base/callback.h"
 #import "base/mac/bind_objc_block.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/weak_ptr.h"
-#import "ios/web/public/image_fetcher/webp_decoder.h"
+#import "components/image_fetcher/ios/webp_decoder.h"
 #include "ios/web/public/web_thread.h"
 #include "ui/gfx/image/image.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 namespace suggestions {
 
 class IOSImageDecoderImpl : public image_fetcher::ImageDecoder {
@@ skipping 70 matching lines @@
   gfx::Image empty_image;
   callback.Run(empty_image);
 }
 
 std::unique_ptr<image_fetcher::ImageDecoder> CreateIOSImageDecoder(
     scoped_refptr<base::TaskRunner> task_runner) {
   return base::MakeUnique<IOSImageDecoderImpl>(std::move(task_runner));
 }
 
 }  // namespace suggestions