Fix an issue that download filename from content disposition is not sanitized

content/public/browser/android/download_controller_android.h

Index: content/public/browser/android/download_controller_android.h
diff --git a/content/public/browser/android/download_controller_android.h b/content/public/browser/android/download_controller_android.h
index 08fe6f749a60e95ee71fee3b3632cea5407ab06b..e048afda0ccb5149055ac48ce5775d08650bf426 100644
--- a/content/public/browser/android/download_controller_android.h
+++ b/content/public/browser/android/download_controller_android.h
@@ -57,6 +57,10 @@ class CONTENT_EXPORT DownloadControllerAndroid : public DownloadItem::Observer {
   // Called by unit test to approve or disapprove file access request.
   virtual void SetApproveFileAccessRequestForTesting(bool approve) {};
 
+  // Called to set the default download file name if it cannot be resolved
+  // from url and content disposition
+  virtual void SetDefaultDownloadFileName(const std::string& file_name) {}
+
  protected:
   ~DownloadControllerAndroid() override {};
   static DownloadControllerAndroid* download_controller_;