Implementation of sync password hash clearing.

components/password_manager/core/browser/password_store.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 COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_H_
 
 #include <memory>
 #include <ostream>
 #include <string>
@@ skipping 243 matching lines @@
   // registry controlled domain than |domain|.
   // If such suffix is found, |consumer|->OnReuseFound() is called on the same
   // thread on which this method is called.
   // |consumer| must not be null.
   virtual void CheckReuse(const base::string16& input,
                           const std::string& domain,
                           PasswordReuseDetectorConsumer* consumer);
 
   // Saves a hash of |password| for password reuse checking.
   void SaveSyncPasswordHash(const base::string16& password);
+
+  // Clears the saved sync password hash.
+  void ClearSyncPasswordHash();
 #endif
 
  protected:
   friend class base::RefCountedThreadSafe<PasswordStore>;
 
   typedef base::Callback<PasswordStoreChangeList(void)> ModificationTask;
 
   // Represents a single GetLogins() request. Implements functionality to filter
   // results and send them to the consumer on the consumer's message loop.
   class GetLoginsRequest {
@@ skipping 149 matching lines @@
 
 // TODO(crbug.com/706392): Fix password reuse detection for Android.
 #if !defined(OS_ANDROID) && !defined(OS_IOS)
   // Synchronous implementation of CheckReuse().
   void CheckReuseImpl(std::unique_ptr<CheckReuseRequest> request,
                       const base::string16& input,
                       const std::string& domain);
 
   // Synchronous implementation of SaveSyncPasswordHash().
   void SaveSyncPasswordHashImpl(const base::string16& password);
+
+  // Synchronous implementation of ClearSyncPasswordHash().
+  void ClearSyncPasswordHashImpl();
 #endif
 
   // TaskRunner for tasks that run on the main thread (usually the UI thread).
   scoped_refptr<base::SingleThreadTaskRunner> main_thread_runner_;
 
   // TaskRunner for the DB thread. By default, this is the task runner used for
   // background tasks -- see |GetBackgroundTaskRunner|.
   scoped_refptr<base::SingleThreadTaskRunner> db_thread_runner_;
 
  private:
@@ skipping 157 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(PasswordStore);
 };
 
 // For logging only.
 std::ostream& operator<<(std::ostream& os,
                          const PasswordStore::FormDigest& digest);
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_STORE_H_