Translate page in the new UI.

chrome/browser/ui/android/infobars/translate_compact_infobar.h

 // 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 CHROME_BROWSER_UI_ANDROID_INFOBARS_TRANSLATE_COMPACT_INFOBAR_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_TRANSLATE_COMPACT_INFOBAR_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/macros.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/android/infobars/infobar_android.h"
+#include "components/translate/content/browser/content_translate_driver.h"
 
 namespace translate {
 class TranslateInfoBarDelegate;
 }
 
-class TranslateCompactInfoBar : public InfoBarAndroid {
+class TranslateCompactInfoBar
+    : public InfoBarAndroid,
+      public translate::ContentTranslateDriver::Observer {
  public:
   explicit TranslateCompactInfoBar(
       std::unique_ptr<translate::TranslateInfoBarDelegate> delegate);
   ~TranslateCompactInfoBar() override;
 
   // JNI methods specific to translate.
   void ApplyTranslateOptions(JNIEnv* env,
                              const base::android::JavaParamRef<jobject>& obj);
 
+  // ContentTranslateDriver::Observer implementation.
+  void OnPageTranslated(const std::string& original_lang,
+                        const std::string& translated_lang,
+                        translate::TranslateErrors::Type error_type) override;
+
  private:
   // InfoBarAndroid:
   base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
       JNIEnv* env) override;
   void ProcessButton(int action) override;
   void SetJavaInfoBar(
       const base::android::JavaRef<jobject>& java_info_bar) override;
 
   translate::TranslateInfoBarDelegate* GetDelegate();
+  translate::ContentTranslateDriver* translate_driver_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateCompactInfoBar);
 };
 
 // Registers the native methods through JNI.
 bool RegisterTranslateCompactInfoBar(JNIEnv* env);
 
 #endif