Pass in extra parameters to WebApkBuilder#buildWebApkAsync()

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 9ccb6fea4c4cedbcd874a50780f0e94df9807a8e..8cf454ca8493b7a54eae0f194a76fc1de22e106f 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -691,9 +691,10 @@ class WebContents : public PageNavigator,
   // Returns true if audio has recently been audible from the WebContents.
   virtual bool WasRecentlyAudible() = 0;
 
-  typedef base::Callback<void(const Manifest&)> GetManifestCallback;
+  typedef base::Callback<void(const GURL&, const Manifest&)>
+      GetManifestCallback;
 
-  // Requests the Manifest of the main frame's document.
+  // Requests the manifest URL and the Manifest of the main frame's document.
   virtual void GetManifest(const GetManifestCallback& callback) = 0;
 
   typedef base::Callback<void(bool)> HasManifestCallback;