Remove unused open WebAPK logic in AppBannerInfoBarDelegateAndroid.

chrome/browser/android/banners/app_banner_infobar_delegate_android.h

 // Copyright 2015 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_ANDROID_BANNERS_APP_BANNER_INFOBAR_DELEGATE_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_INFOBAR_DELEGATE_ANDROID_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 82 matching lines @@
   };
 
   // Delegate for promoting a web app.
   AppBannerInfoBarDelegateAndroid(
       base::WeakPtr<AppBannerManager> weak_manager,
       const base::string16& app_title,
       std::unique_ptr<ShortcutInfo> info,
       std::unique_ptr<SkBitmap> icon,
       int event_request_id,
       bool is_webapk,
-      bool is_webapk_already_installed,
       webapk::InstallSource webapk_install_source);
 
   // Delegate for promoting an Android app.
   AppBannerInfoBarDelegateAndroid(
       const base::string16& app_title,
       const base::android::ScopedJavaGlobalRef<jobject>& native_app_data,
       std::unique_ptr<SkBitmap> icon,
       const std::string& native_app_package,
       const std::string& referrer,
       int event_request_id);
@@ skipping 39 matching lines @@
   base::android::ScopedJavaGlobalRef<jobject> native_app_data_;
 
   std::unique_ptr<SkBitmap> icon_;
 
   std::string native_app_package_;
   std::string referrer_;
   int event_request_id_;
   bool has_user_interaction_;
 
   bool is_webapk_;
-  bool is_webapk_already_installed_;
 
   // Indicates the current state of a WebAPK installation.
   InstallState install_state_;
 
   // Tracks how long it takes to install a WebAPK.
   std::unique_ptr<base::ElapsedTimer> timer_;
 
   // Indicates the way in which a WebAPK (if applicable) is installed: from the
   // menu or from an app banner.
   webapk::InstallSource webapk_install_source_;
 
   base::WeakPtrFactory<AppBannerInfoBarDelegateAndroid> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AppBannerInfoBarDelegateAndroid);
 };
 
 // Register native methods.
 bool RegisterAppBannerInfoBarDelegateAndroid(JNIEnv* env);
 
 }  // namespace banners
 
 #endif  // CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_INFOBAR_DELEGATE_ANDROID_H_