fix: correct isDownloadable docs to match impl (#18747)

atom/browser/api/atom_api_in_app_purchase.cc

@@ -61,7 +61,7 @@ struct Converter<in_app_purchase::Product> {
     dict.Set("formattedPrice", val.formattedPrice);
 
     // Downloadable Content Information
-    dict.Set("isDownloadable", val.downloadable);
+    dict.Set("isDownloadable", val.isDownloadable);
 
     return dict.GetHandle();
   }

atom/browser/mac/in_app_purchase_product.h

@@ -29,7 +29,7 @@ struct Product {
   std::string formattedPrice;
 
   // Downloadable Content Information
-  bool downloadable = false;
+  bool isDownloadable = false;
 
   Product(const Product&);
   Product();

atom/browser/mac/in_app_purchase_product.mm

@@ -146,9 +146,7 @@
   }
 
   // Downloadable Content Information
-  if (product.downloadable == true) {
-    productStruct.downloadable = true;
-  }
+  productStruct.isDownloadable = [product downloadable];
 
   return productStruct;
 }

docs/api/structures/product.md

@@ -7,4 +7,4 @@
 * `contentLengths` Number[] - The total size of the content, in bytes.
 * `price` Number - The cost of the product in the local currency.
 * `formattedPrice` String - The locale formatted price of the product.
-* `downloadable` Boolean - A Boolean value that indicates whether the App Store has downloadable content for this product.
+* `isDownloadable` Boolean - A Boolean value that indicates whether the App Store has downloadable content for this product. `true` if at least one file has been associated with the product.