Pass in extra parameters to WebApkBuilder#buildWebApkAsync()

content/public/browser/web_contents.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 673 matching lines @@
   // Notifies the renderer that the user has closed the FindInPage window
   // (and what action to take regarding the selection).
   virtual void StopFinding(StopFindAction action) = 0;
 
   // Requests the renderer to insert CSS into the main frame's document.
   virtual void InsertCSS(const std::string& css) = 0;
 
   // 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;
 
   // Returns true if the main frame has a <link> to a web manifest, otherwise
   // false. This method does not guarantee that the manifest exists at the
   // specified location or is valid.
   virtual void HasManifest(const HasManifestCallback& callback) = 0;
 
   // Requests the renderer to exit fullscreen.
@@ skipping 45 matching lines @@
 
  private:
   // This interface should only be implemented inside content.
   friend class WebContentsImpl;
   WebContents() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_H_