Use IOSImageDataFetcherWrapper for favicon

components/favicon/ios/web_favicon_driver.h

Index: components/favicon/ios/web_favicon_driver.h
diff --git a/components/favicon/ios/web_favicon_driver.h b/components/favicon/ios/web_favicon_driver.h
index b5209a1b7a0a5067db20c93bb3e054ad3e18fcef..2c2aeaf0b28b6e72490196407cd742a5d6ba1848 100644
--- a/components/favicon/ios/web_favicon_driver.h
+++ b/components/favicon/ios/web_favicon_driver.h
@@ -10,6 +10,10 @@
 #include "ios/web/public/web_state/web_state_observer.h"
 #include "ios/web/public/web_state/web_state_user_data.h"
 
+namespace image_fetcher {
+class IOSImageDataFetcherWrapper;
+}
+
 namespace web {
 class WebState;
 }
@@ -58,6 +62,9 @@ class WebFaviconDriver : public web::WebStateObserver,
   // The URL passed to FetchFavicon().
   GURL fetch_favicon_url_;
 
+  // Image Fetcher used to images.

[Marc Treib, 2017/02/06 12:35:49]

This sentence no verb :)

[gambard, 2017/02/06 15:58:28]

Done.

+  std::unique_ptr<image_fetcher::IOSImageDataFetcherWrapper> image_fetcher_;

[Marc Treib, 2017/02/06 12:35:49]

nit: #include <memory>

[gambard, 2017/02/06 15:58:28]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(WebFaviconDriver);
 };