Show password sync status in CBD

components/browsing_data/core/counters/passwords_counter.h

 // Copyright 2015 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_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_
 #define COMPONENTS_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_
 
 #include <memory>
 #include <vector>
 
 #include "components/browsing_data/core/counters/browsing_data_counter.h"
 #include "components/password_manager/core/browser/password_store.h"
 #include "components/password_manager/core/browser/password_store_consumer.h"
+#include "components/sync/driver/sync_service_observer.h"
 
 namespace browsing_data {
 
 class PasswordsCounter : public browsing_data::BrowsingDataCounter,
                          public password_manager::PasswordStoreConsumer,
-                         public password_manager::PasswordStore::Observer {
+                         public password_manager::PasswordStore::Observer,
+                         public syncer::SyncServiceObserver {
  public:
+  class PasswordResult : public FinishedResult {
+   public:
+    PasswordResult(const PasswordsCounter* source,
+                   ResultInt value,
+                   bool password_sync_enabled);
+    ~PasswordResult() override;
+
+    bool password_sync_enabled() const { return password_sync_enabled_; }
+
+   private:
+    bool password_sync_enabled_;
+  };
+
   explicit PasswordsCounter(
-      scoped_refptr<password_manager::PasswordStore> store);
+      scoped_refptr<password_manager::PasswordStore> store,
+      syncer::SyncService* sync_service);
   ~PasswordsCounter() override;
 
   const char* GetPrefName() const override;
 
  private:
   void OnInitialized() override;
 
   // Counting is done asynchronously in a request to PasswordStore.
   // This callback returns the results, which are subsequently reported.
   void OnGetPasswordStoreResults(
       std::vector<std::unique_ptr<autofill::PasswordForm>> results) override;
 
   // Called when the contents of the password store change. Triggers new
   // counting.
   void OnLoginsChanged(
       const password_manager::PasswordStoreChangeList& changes) override;
 
+  // SyncServiceObserver implementation.
+  void OnStateChanged(syncer::SyncService* sync) override;
+
   void Count() override;
 
   base::CancelableTaskTracker cancelable_task_tracker_;
   scoped_refptr<password_manager::PasswordStore> store_;
+  syncer::SyncService* sync_service_;
+  bool password_sync_enabled_;
 };
 
 }  // namespace browsing_data
 
 #endif  // COMPONENTS_BROWSING_DATA_CORE_COUNTERS_PASSWORDS_COUNTER_H_