[Suggestions] Introduce a different image encoder/decoder for iOS

components/suggestions/image_manager.h

Index: components/suggestions/image_manager.h
diff --git a/components/suggestions/image_manager.h b/components/suggestions/image_manager.h
index 02ec268144850bf0bbf9d9f622d0ee951bcdaf1f..57ead852dab6cc1a7463ad7210aa9447f5c05ba8 100644
--- a/components/suggestions/image_manager.h
+++ b/components/suggestions/image_manager.h
@@ -119,11 +119,6 @@ class ImageManager : public ImageFetcherDelegate {
 
   void ServePendingCacheRequests();
 
-  // From SkBitmap to the vector of JPEG-encoded bytes, |dst|. Visible only for
-  // testing.
-  static bool EncodeImage(const SkBitmap& bitmap,
-                          std::vector<unsigned char>* dest);
-
   // Map from URL to image URL. Should be kept up to date when a new
   // SuggestionsProfile is available.
   std::map<GURL, GURL> image_url_map_;