Validate hash_sha256 checksum on .crx update.

chrome/browser/extensions/updater/extension_updater.h

Index: chrome/browser/extensions/updater/extension_updater.h
diff --git a/chrome/browser/extensions/updater/extension_updater.h b/chrome/browser/extensions/updater/extension_updater.h
index 7e09908cfa6bbdd6a47d02dbc5084066a1a654f1..169534fc886686a37d138aad4bf08a9417039ebd 100644
--- a/chrome/browser/extensions/updater/extension_updater.h
+++ b/chrome/browser/extensions/updater/extension_updater.h
@@ -139,14 +139,12 @@ class ExtensionUpdater : public ExtensionDownloaderDelegate,
   // but have not yet installed.
   struct FetchedCRXFile {
     FetchedCRXFile();
-    FetchedCRXFile(const std::string& id,
-                   const base::FilePath& path,
+    FetchedCRXFile(const CRXFileInfo& file,
                    bool file_ownership_passed,
                    const std::set<int>& request_ids);
     ~FetchedCRXFile();
 
-    std::string extension_id;
-    base::FilePath path;
+    CRXFileInfo info;
     bool file_ownership_passed;
     std::set<int> request_ids;
   };
@@ -198,8 +196,7 @@ class ExtensionUpdater : public ExtensionDownloaderDelegate,
                                  Error error,
                                  const PingResult& ping,
                                  const std::set<int>& request_ids) override;
-  void OnExtensionDownloadFinished(const std::string& id,
-                                   const base::FilePath& path,
+  void OnExtensionDownloadFinished(const CRXFileInfo& file,
                                    bool file_ownership_passed,
                                    const GURL& download_url,
                                    const std::string& version,