Make downloaded WebAPK world readable

chrome/browser/android/webapk/webapk_installer.h

Index: chrome/browser/android/webapk/webapk_installer.h
diff --git a/chrome/browser/android/webapk/webapk_installer.h b/chrome/browser/android/webapk/webapk_installer.h
index 3c18002005e730d6976687d6a06bab77892cafdf..6b8f3633298dc6322404b1541e7635fdc46cab38 100644
--- a/chrome/browser/android/webapk/webapk_installer.h
+++ b/chrome/browser/android/webapk/webapk_installer.h
@@ -83,14 +83,24 @@ class WebApkInstaller : public net::URLFetcherDelegate {
   void OnGotWebApkDownloadUrl(const GURL& download_url,
                               const std::string& package_name);
 
-  // Called once the WebAPK has been downloaded. Installs the WebAPK if the
-  // download was successful.
+  // Called once the WebAPK has been downloaded. Makes the downloaded WebAPK
+  // world readable and installs the WebAPK if the download was successful.
   // |file_path| is the file path that the WebAPK was downloaded to.
   // |package_name| is the package name that the WebAPK should be installed at.
   void OnWebApkDownloaded(const base::FilePath& file_path,
                           const std::string& package_name,
                           FileDownloader::Result result);
 
+  // Called once the downloaded WebAPK has been made world readable. Installs
+  // the WebAPK.
+  // |file_path| is the file path that the WebAPK was downloaded to.
+  // |package_name| is the package name that the WebAPK should be installed at.
+  // |change_permission_success| is whether the WebAPK could be made world
+  // readable.
+  void OnWebApkMadeWorldReadable(const base::FilePath& file_path,
+                                 const std::string& package_name,
+                                 bool change_permission_success);
+
   // Populates webapk::WebApk and returns it.
   // Must be called on a worker thread because it encodes an SkBitmap.
   std::unique_ptr<webapk::WebApk> BuildWebApkProtoInBackground();