[Sync] Move keystore key handling to SyncEncryptionHandlerImpl

sync/internal_api/sync_manager_impl.h

Index: sync/internal_api/sync_manager_impl.h
diff --git a/sync/internal_api/sync_manager_impl.h b/sync/internal_api/sync_manager_impl.h
index a4ef8e89a404bee9580866624db210cd7ade7182..dbd79975f622a4a924f42772e689ae754d47d21e 100644
--- a/sync/internal_api/sync_manager_impl.h
+++ b/sync/internal_api/sync_manager_impl.h
@@ -106,7 +106,6 @@ class SyncManagerImpl : public SyncManager,
   virtual void AddObserver(SyncManager::Observer* observer) OVERRIDE;
   virtual void RemoveObserver(SyncManager::Observer* observer) OVERRIDE;
   virtual SyncStatus GetDetailedStatus() const OVERRIDE;
-  virtual bool GetKeystoreKeyBootstrapToken(std::string* token) OVERRIDE;
   virtual void SaveChanges() OVERRIDE;
   virtual void StopSyncingForShutdown(const base::Closure& callback) OVERRIDE;
   virtual void ShutdownOnSyncThread() OVERRIDE;
@@ -121,7 +120,8 @@ class SyncManagerImpl : public SyncManager,
       const sync_pb::EncryptedData& pending_keys) OVERRIDE;
   virtual void OnPassphraseAccepted() OVERRIDE;
   virtual void OnBootstrapTokenUpdated(
-      const std::string& bootstrap_token) OVERRIDE;
+      const std::string& bootstrap_token,
+      BootstrapTokenType type) OVERRIDE;
   virtual void OnEncryptedTypesChanged(
       ModelTypeSet encrypted_types,
       bool encrypt_everything) OVERRIDE;