Attempt to repair corrupt enterprise policy force-installed extensions

chrome/browser/extensions/pending_extension_manager.h

 // Copyright 2014 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_PENDING_EXTENSION_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_PENDING_EXTENSION_MANAGER_H_
 
 #include <list>
+#include <map>
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
+#include "base/time/time.h"
 #include "chrome/browser/extensions/pending_extension_info.h"
+#include "extensions/common/extension_id.h"
 #include "extensions/common/manifest.h"
 
 class GURL;
 
 namespace base {
 class Version;
 }
 
 namespace content {
 class BrowserContext;
@@ skipping 36 matching lines @@
 
   // Is |id| in the set of pending extensions?
   bool IsIdPending(const std::string& id) const;
 
   // Returns true if there are any extensions pending.
   bool HasPendingExtensions() const;
 
   // Whether there is pending extension install from sync.
   bool HasPendingExtensionFromSync() const;
 
+  // Notifies the manager that we are reinstalling the policy force-installed
+  // extension with |id| because we detected corruption in the current copy.
+  void ExpectPolicyReinstallForCorruption(const ExtensionId& id);
+
+  // Are we expecting a reinstall of the extension with |id| due to corruption?
+  bool IsPolicyReinstallForCorruptionExpected(const ExtensionId& id) const;
+
   // Adds an extension in a pending state; the extension with the
   // given info will be installed on the next auto-update cycle.
   // Return true if the extension was added.  Will return false
   // if the extension is pending from another source which overrides
   // sync installs (such as a policy extension) or if the extension
   // is already installed.
   // After installation, the extension will be granted permissions iff
   // |version| is valid and matches the actual installed version.
   bool AddFromSync(
       const std::string& id,
@@ skipping 53 matching lines @@
   // Add a pending extension record directly.  Used for unit tests that need
   // to set an inital state. Use friendship to allow the tests to call this
   // method.
   void AddForTesting(const PendingExtensionInfo& pending_extension_info);
 
   // The BrowserContext with which the manager is associated.
   content::BrowserContext* context_;
 
   PendingExtensionList pending_extension_list_;
 
+  // A set of policy force-installed extension ids that are being reinstalled
+  // due to corruption, mapped to the time we detected the corruption.
+  std::map<ExtensionId, base::TimeTicks> expected_policy_reinstalls_;
+
   FRIEND_TEST_ALL_PREFIXES(::ExtensionServiceTest,
                            UpdatePendingExtensionAlreadyInstalled);
   friend class ExtensionUpdaterTest;
   friend void SetupPendingExtensionManagerForTest(
       int count, const GURL& update_url,
       PendingExtensionManager* pending_extension_manager);
 
   DISALLOW_COPY_AND_ASSIGN(PendingExtensionManager);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_PENDING_EXTENSION_MANAGER_H_