Refactor CRX verification in preparation to support CRX₃ files.

extensions/browser/sandboxed_unpacker.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 EXTENSIONS_BROWSER_SANDBOXED_UNPACKER_H_
 #define EXTENSIONS_BROWSER_SANDBOXED_UNPACKER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_delete_on_sequence.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "content/public/browser/utility_process_mojo_client.h"
 #include "extensions/browser/crx_file_info.h"
@@ skipping 149 matching lines @@
     INVALID_PATH_FOR_CATALOG,
     ERROR_SERIALIZING_CATALOG,
     ERROR_SAVING_CATALOG,
 
     // SandboxedUnpacker::ValidateSignature()
     CRX_HASH_VERIFICATION_FAILED,
 
     UNZIP_FAILED,
     DIRECTORY_MOVE_FAILED,
 
+    // SandboxedUnpacker::ValidateSignature()
+    CRX_FILE_IS_DELTA_UPDATE,
+    CRX_EXPECTED_HASH_INVALID,
+
     NUM_FAILURE_REASONS
   };
 
   friend class SandboxedUnpackerTest;
 
   ~SandboxedUnpacker();
 
   // Create |temp_dir_| used to unzip or unpack the extension in.
   bool CreateTempDirectory();
 
@@ skipping 85 matching lines @@
   // Utility client used for sending tasks to the utility process.
   std::unique_ptr<content::UtilityProcessMojoClient<mojom::ExtensionUnpacker>>
       utility_process_mojo_client_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxedUnpacker);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_SANDBOXED_UNPACKER_H_