Move iOS ImageFetcher to ios/web/public

ios/web/public/image_fetcher/webp_decoder.h

Index: ios/web/public/image_fetcher/webp_decoder.h
diff --git a/ios/chrome/browser/webp_transcode/webp_decoder.h b/ios/web/public/image_fetcher/webp_decoder.h
similarity index 92%
rename from ios/chrome/browser/webp_transcode/webp_decoder.h
rename to ios/web/public/image_fetcher/webp_decoder.h
index e2f5714345707746da6a56100d7eabddcc22cd23..1ab4d6c544a14e5483b98bdb4ca81e2e9a317cc2 100644
--- a/ios/chrome/browser/webp_transcode/webp_decoder.h
+++ b/ios/web/public/image_fetcher/webp_decoder.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef IOS_CHROME_BROWSER_WEBP_TRANSCODE_WEBP_DECODER_H_
-#define IOS_CHROME_BROWSER_WEBP_TRANSCODE_WEBP_DECODER_H_
+#ifndef IOS_WEB_PUBLIC_IMAGE_FETCHER_WEBP_DECODER_H_
+#define IOS_WEB_PUBLIC_IMAGE_FETCHER_WEBP_DECODER_H_
 
 #import <Foundation/Foundation.h>
 #include <stddef.h>
@@ -75,4 +75,4 @@ class WebpDecoder : public base::RefCountedThreadSafe<WebpDecoder> {
 
 }  // namespace webp_transcode
 
-#endif  // IOS_CHROME_BROWSER_WEBP_TRANSCODE_WEBP_DECODER_H_
+#endif  // IOS_WEB_PUBLIC_IMAGE_FETCHER_WEBP_DECODER_H_