@class NSArray, NSMutableDictionary, NSURL, NSObject; @protocol OS_dispatch_queue; @interface WBSStartPageBackgroundImagesDataSource : NSObject { NSObject<OS_dispatch_queue> *_imageLoadingQueue; NSObject<OS_dispatch_queue> *_imageSavingQueue; NSArray *_defaultImageURLs; NSArray *_imageURLsWithLuminance; NSMutableDictionary *_pendingImageThumbnailRequests; struct Vector<WTF::RetainPtr<CGImage *>, 0UL, WTF::CrashOnOverflow, 16UL, WTF::FastMalloc> { void *m_buffer; unsigned int m_capacity; unsigned int m_size; } _imageCache; NSURL *_thumbnailsPath; } @property (readonly, nonatomic) long long itemCount; - (id).cxx_construct; - (void).cxx_destruct; - (long long)indexOfBackgroundImageWithName:(id)a0; - (void)imageThumbnailWithItemIndex:(long long)a0 completion:(id /* block */)a1; - (id)imageURLAndLuminanceWithItemIndex:(long long)a0; - (id)initWithBundle:(id)a0 localCachesDirectory:(id)a1; - (struct RetainPtr<CGImage *> { void *x0; })_createThumbnail:(id)a0 imageSource:(struct RetainPtr<CGImageSource *> { void *x0; })a1; - (id)_thumbnailURLWithItemIndex:(long long)a0; - (id)initWithBuiltInImageURLs:(id)a0 localCachesDirectory:(id)a1; @end