AU: Verify source rootfs/kernel hashes before applying delta.

action_processor.h

 // Copyright (c) 2010 The Chromium OS 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 CHROMEOS_PLATFORM_UPDATE_ENGINE_ACTION_PROCESSOR_H__
 #define CHROMEOS_PLATFORM_UPDATE_ENGINE_ACTION_PROCESSOR_H__
 
 #include <deque>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
   kActionCodeFilesystemCopierError = 4,
   kActionCodePostinstallRunnerError = 5,
   kActionCodeSetBootableFlagError = 6,
   kActionCodeInstallDeviceOpenError = 7,
   kActionCodeKernelDeviceOpenError = 8,
   kActionCodeDownloadTransferError = 9,
   kActionCodeDownloadHashMismatchError = 10,
   kActionCodeDownloadSizeMismatchError = 11,
   kActionCodeDownloadPayloadVerificationError = 12,
   kActionCodeDownloadAppliedUpdateVerificationError = 13,
+  kActionCodeDownloadWriteError = 14,
 };
 
 class AbstractAction;
 class ActionProcessorDelegate;
 
 class ActionProcessor {
  public:
   ActionProcessor();
 
   virtual ~ActionProcessor();
@@ skipping 59 matching lines @@
   // Called whenever an action has finished processing, either successfully
   // or otherwise.
   virtual void ActionCompleted(ActionProcessor* processor,
                                AbstractAction* action,
                                ActionExitCode code) {}
 };
 
 }  // namespace chromeos_update_engine
 
 #endif  // CHROMEOS_PLATFORM_UPDATE_ENGINE_ACTION_PROCESSOR_H__