Implemented new Translate API for purely Objective-C clients.

ios/web_view/shell/translate_delegate.h

Index: ios/web_view/shell/translate_delegate.h
diff --git a/ios/web_view/shell/translate_controller.h b/ios/web_view/shell/translate_delegate.h
similarity index 52%
rename from ios/web_view/shell/translate_controller.h
rename to ios/web_view/shell/translate_delegate.h
index c2522510add7cb606aa117d7d453288ddf724783..069701d0693e147286654ebf1c9d73355b8624ee 100644
--- a/ios/web_view/shell/translate_controller.h
+++ b/ios/web_view/shell/translate_delegate.h
@@ -2,13 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef IOS_WEB_VIEW_SHELL_TRANSLATE_CONTROLLER_H_
-#define IOS_WEB_VIEW_SHELL_TRANSLATE_CONTROLLER_H_
+#ifndef IOS_WEB_VIEW_SHELL_TRANSLATE_DELEGATE_H_
+#define IOS_WEB_VIEW_SHELL_TRANSLATE_DELEGATE_H_
 
 #import <ChromeWebView/ChromeWebView.h>
 #import <Foundation/Foundation.h>
 
-@interface TranslateController : NSObject<CWVTranslateDelegate>
+@interface TranslateDelegate : NSObject<CWVTranslationControllerDelegate>

[Eugene But (OOO till 7-30), 2017/04/27 13:08:09]

Should this be TranslationDelegate?

[jzw1, 2017/04/28 02:34:54]

Done.

 @end
 
-#endif  // IOS_WEB_VIEW_SHELL_TRANSLATE_CONTROLLER_H_
+#endif  // IOS_WEB_VIEW_SHELL_TRANSLATE_DELEGATE_H_