Migrate weave-related classes from proximity_auth/ble to cryptauth/ble.

components/cryptauth/secure_message_delegate.cc

 // 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.
 
 #include "components/cryptauth/secure_message_delegate.h"
 
 namespace cryptauth {
 
 SecureMessageDelegate::SecureMessageDelegate() {
 }
 
 SecureMessageDelegate::~SecureMessageDelegate() {
 }
 
 SecureMessageDelegate::CreateOptions::CreateOptions() {
 }
 
 SecureMessageDelegate::CreateOptions::CreateOptions(
     const CreateOptions& other) = default;
 
 SecureMessageDelegate::CreateOptions::~CreateOptions() {
 }
 
 SecureMessageDelegate::UnwrapOptions::UnwrapOptions() {
 }
 
 SecureMessageDelegate::UnwrapOptions::~UnwrapOptions() {
 }
 
-}  // proximity_auth
+}  // namespace cryptauth