remove reliance on webcontents when requesting storage permission

chrome/browser/android/download/download_controller_base.h

Index: chrome/browser/android/download/download_controller_base.h
diff --git a/chrome/browser/android/download/download_controller_base.h b/chrome/browser/android/download/download_controller_base.h
index e43f1ed6893b90da2ca729db5792f6c16dd819c6..20acb0b11375bced2e8b103341633958cb82ea5d 100644
--- a/chrome/browser/android/download/download_controller_base.h
+++ b/chrome/browser/android/download/download_controller_base.h
@@ -72,7 +72,7 @@ class DownloadControllerBase : public content::DownloadItem::Observer {
   // Called to prompt the user for file access permission. When finished,
   // |callback| will be executed.
   virtual void AcquireFileAccessPermission(
-      content::WebContents* web_contents,
+      const content::ResourceRequestInfo::WebContentsGetter& wc_getter,
       const AcquireFileAccessPermissionCallback& callback) = 0;
 
   // Called by unit test to approve or disapprove file access request.