Move WebpDecoder from ios/web to components/image_fetcher

components/image_fetcher/ios/ios_image_data_fetcher_wrapper.mm

 // Copyright 2017 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 "components/image_fetcher/ios/ios_image_data_fetcher_wrapper.h"
 
 #import "base/mac/bind_objc_block.h"
 #include "base/memory/ptr_util.h"
 #include "base/task_runner.h"
 #include "base/task_runner_util.h"
-#import "ios/web/public/image_fetcher/webp_decoder.h"
+#import "components/image_fetcher/ios/webp_decoder.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "url/url_constants.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #pragma mark - IOSImageDataFetcherWrapper
@@ skipping 57 matching lines @@
         task_runner.get(), FROM_HERE, base::BindBlockArc(^NSData*() {
           return webp_transcode::WebpDecoder::DecodeWebpImage(data);
         }),
         base::BindBlockArc(^(NSData* decodedData) {
           callback(decodedData, webp_metadata);
         }));
   });
 }
 
 }  // namespace image_fetcher