Code cleanup for Translate Compact Infobar.

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"
@@ skipping 26 matching lines @@
                                 const base::android::JavaParamRef<jobject>& obj,
                                 int option,
                                 jboolean value);
 
   // Check whether we should automatically trigger "Always Translate".
   bool ShouldAutoAlwaysTranslate();
 
   // Check whether we should automatically trigger "Never Translate Language".
   jboolean ShouldAutoNeverTranslate(
       JNIEnv* env,
-      const base::android::JavaParamRef<jobject>& obj);
+      const base::android::JavaParamRef<jobject>& obj,
+      jboolean menu_expanded);
 
   // TranslateInfoBarDelegate::Observer implementation.
   void OnTranslateStepChanged(translate::TranslateStep step,
                     translate::TranslateErrors::Type error_type) override;
+  // Returns true if the user didn't take any affirmative action.
+  // The function will be called when the translate infobar is dismissed.
+  // If it's true, we will record a declined event.
   bool IsDeclinedByUser() 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();
 
-  // Bits for trace user actions.
+  // Bits for trace user's affirmative actions.
   unsigned int action_flags_;
 
-  // User action flags to record what the user has done in each session.
+  // Affirmative action flags to record what the user has done in one session.
   enum ActionFlag {
     FLAG_NONE = 0,
     FLAG_TRANSLATE = 1 << 0,
     FLAG_REVERT = 1 << 1,
     FLAG_ALWAYS_TRANSLATE = 1 << 2,
     FLAG_NEVER_LANGUAGE = 1 << 3,
     FLAG_NEVER_SITE = 1 << 4,
+    FLAG_EXPAND_MENU = 1 << 5,
   };
 
   // If number of consecutive translations is equal to this number, infobar will
   // automatically trigger "Always Translate".
   const int kAcceptCountThreshold = 5;
   // If number of consecutive denied is equal to this number, infobar will
   // automatically trigger "Never Translate Language".
   const int kDeniedCountThreshold = 7;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateCompactInfoBar);
 };
 
 // Registers the native methods through JNI.
 bool RegisterTranslateCompactInfoBar(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_TRANSLATE_COMPACT_INFOBAR_H_