Implemented new Translate API for purely Objective-C clients.

ios/web_view/internal/translate/cwv_language_detection_result_internal.h

Index: ios/web_view/internal/translate/cwv_language_detection_result_internal.h
diff --git a/ios/web_view/internal/translate/cwv_language_detection_result_internal.h b/ios/web_view/internal/translate/cwv_language_detection_result_internal.h
new file mode 100644
index 0000000000000000000000000000000000000000..39668841d3d48ed36758cbf523c7765a6a01a1c9
--- /dev/null
+++ b/ios/web_view/internal/translate/cwv_language_detection_result_internal.h
@@ -0,0 +1,29 @@
+// Copyright 2017 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_INTERNAL_CWV_LANGUAGE_DETECTION_RESULT_INTERNAL_H
+#define IOS_WEB_VIEW_INTERNAL_CWV_LANGUAGE_DETECTION_RESULT_INTERNAL_H
+
+#import <Foundation/Foundation.h>
+
+#import "ios/web_view/public/cwv_language_detection_result.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class CWVTranslationLanguage;
+
+// Internal methods for CWVLanguageDetectionResult.
+@interface CWVLanguageDetectionResult ()
+
+- (instancetype)
+   initWithPageLanguage:(CWVTranslationLanguage*)pageLanguage
+suggestedTargetLanguage:(CWVTranslationLanguage*)suggestedTargetLanguage
+     supportedLanguages:(NSArray<CWVTranslationLanguage*>*)supportedLanguages
+    NS_DESIGNATED_INITIALIZER;
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+#endif  // IOS_WEB_VIEW_INTERNAL_CWV_LANGUAGE_DETECTION_RESULT_INTERNAL_H