Retry reinstallation of corrupted policy extensions.

chrome/browser/extensions/extension_service.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_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <map>
 #include <memory>
 #include <set>
@@ skipping 431 matching lines @@
     browser_terminating_ = value;
   }
 
   // Set a callback to be called when all external providers are ready and their
   // extensions have been installed.
   void set_external_updates_finished_callback_for_test(
       const base::Closure& callback) {
     external_updates_finished_callback_ = callback;
   }
 
+  void set_external_updates_disabled_for_test(bool value) {
+    external_updates_disabled_for_test_ = value;
+  }
+
  private:
   // Loads extensions specified via a command line flag/switch.
   void LoadExtensionsFromCommandLineFlag(const char* switch_name);
 
   // Reloads the specified extension, sending the onLaunched() event to it if it
   // currently has any window showing. |be_noisy| determines whether noisy
   // failures are allowed for unpacked extension installs.
   void ReloadExtensionImpl(const std::string& extension_id, bool be_noisy);
 
   // content::NotificationObserver implementation:
@@ skipping 208 matching lines @@
   // A callback to be called when all external providers are ready and their
   // extensions have been installed. Normally this is a null callback, but
   // is used in external provider related tests.
   base::Closure external_updates_finished_callback_;
 
   // Set when the browser is terminating. Prevents us from installing or
   // updating additional extensions and allows in-progress installations to
   // decide to abort.
   bool browser_terminating_ = false;
 
+  // If set, call to CheckForExternalUpdates() will bail out.
+  bool external_updates_disabled_for_test_ = false;
+
   // Set to true if this is the first time this ExtensionService has run.
   // Used for specially handling external extensions that are installed the
   // first time.
   bool is_first_run_ = false;
 
   // Set to true if extensions are all to be blocked.
   bool block_extensions_ = false;
 
   // Store the ids of reloading extensions. We use this to re-enable extensions
   // which were disabled for a reload.
@@ skipping 54 matching lines @@
                            GreylistUnknownDontChange);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            ManagementPolicyProhibitsEnableOnInstalled);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            BlockAndUnblockBlacklistedExtension);
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_