Cleanup ios/web_view.

ios/web_view/public/criwv_translate_delegate.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 IOS_WEB_VIEW_PUBLIC_CRIWV_TRANSLATE_DELEGATE_H_
+#define IOS_WEB_VIEW_PUBLIC_CRIWV_TRANSLATE_DELEGATE_H_
+
+#import <Foundation/Foundation.h>
+
+@protocol CRIWVTranslateManager;
+
+namespace ios_web_view {
+
+typedef NS_ENUM(NSInteger, CRIWVTransateStep) {
+  CRIWVTransateStepBeforeTranslate,
+  CRIWVTransateStepTranslating,
+  CRIWVTransateStepAfterTranslate,
+  CRIWVTransateStepError,
+};
+
+}  // namespace ios_web_view
+
+// Delegate interface for the CRIWVTranslate.  Embedders can implement the
+// functions in order to customize the behavior.
+@protocol CRIWVTranslateDelegate
+
+- (void)translateStepChanged:(ios_web_view::CRIWVTransateStep)step
+                     manager:(id<CRIWVTranslateManager>)manager;
+
+@end
+
+#endif  // IOS_WEB_VIEW_PUBLIC_CRIWV_TRANSLATE_DELEGATE_H_