Validate hash_sha256 checksum on .crx update.

chrome/browser/chromeos/app_mode/kiosk_external_updater.h

Index: chrome/browser/chromeos/app_mode/kiosk_external_updater.h
diff --git a/chrome/browser/chromeos/app_mode/kiosk_external_updater.h b/chrome/browser/chromeos/app_mode/kiosk_external_updater.h
index e24bd78f54692ec523f9f4f39e52ae689813c996..dc9382b0e2cf9503bdfbd34972d80280b31f9bcc 100644
--- a/chrome/browser/chromeos/app_mode/kiosk_external_updater.h
+++ b/chrome/browser/chromeos/app_mode/kiosk_external_updater.h
@@ -45,9 +45,11 @@ class KioskExternalUpdater : public disks::DiskMountManager::Observer,
   };
   struct ExternalUpdate {
     ExternalUpdate();
+    ~ExternalUpdate();

[Dmitry Polukhin, 2015/01/15 12:45:13]

nit, if they are empty, we shouldn't need them at all.

[ginkage, 2015/01/15 15:20:15]

I've tried. :)

../../chrome/browser/chromeos/app_mode/kiosk_external_updater.h:46:3: error:
[chromium-style] Complex class/struct needs an explicit out-of-line constructor.
  struct ExternalUpdate {
  ^
../../chrome/browser/chromeos/app_mode/kiosk_external_updater.h:46:3: error:
[chromium-style] Complex class/struct needs an explicit out-of-line destructor.
2 errors generated.

 
     std::string app_name;
     base::FilePath external_crx;
+    std::string package_hash;
     ExternalUpdateStatus update_status;
     base::string16 error;
   };