Show alert failure for reloading unpacked extensions with bad manifest

chrome/browser/extensions/unpacked_installer.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 CHROME_BROWSER_EXTENSIONS_UNPACKED_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_UNPACKED_INSTALLER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 47 matching lines @@
 
   // Allows overriding of whether modern manifest versions are required;
   // intended for testing.
   bool require_modern_manifest_version() const {
     return require_modern_manifest_version_;
   }
   void set_require_modern_manifest_version(bool val) {
     require_modern_manifest_version_ = val;
   }
 
-  void set_on_failure_callback(const OnFailureCallback& callback) {
-    on_failure_callback_ = callback;
-  }
-
   void set_be_noisy_on_failure(bool be_noisy_on_failure) {
     be_noisy_on_failure_ = be_noisy_on_failure;
   }
 
  private:
   friend class base::RefCountedThreadSafe<UnpackedInstaller>;
 
   explicit UnpackedInstaller(ExtensionService* extension_service);
   virtual ~UnpackedInstaller();
 
@@ skipping 40 matching lines @@
   base::FilePath extension_path_;
 
   // If true and the extension contains plugins, we prompt the user before
   // loading.
   bool prompt_for_plugins_;
 
   // Whether to require the extension installed to have a modern manifest
   // version.
   bool require_modern_manifest_version_;
 
-  // An optional callback to set in order to be notified of failure.
-  OnFailureCallback on_failure_callback_;
-
   // Whether or not to be noisy (show a dialog) on failure. Defaults to true.
   bool be_noisy_on_failure_;
 
   // Gives access to common methods and data of an extension installer.
   ExtensionInstaller installer_;
 
   DISALLOW_COPY_AND_ASSIGN(UnpackedInstaller);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_UNPACKED_INSTALLER_H_