Fall back to shortcut A2HS when Phonesky is out of date or unavailable.

chrome/browser/android/banners/app_banner_manager_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_MANAGER_ANDROID_H_
 #define CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_
 
 #include <string>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/callback_forward.h"
 #include "base/macros.h"
+#include "base/memory/weak_ptr.h"
 #include "chrome/browser/banners/app_banner_manager.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 namespace banners {
 
 // Extends the AppBannerManager to support native Android apps. This class owns
 // a Java-side AppBannerManager which interfaces with the Java runtime to fetch
 // native app data and install them when requested.
 //
 // A site requests a native app banner by setting "prefer_related_applications"
@@ skipping 71 matching lines @@
 
   // Returns true if |platform|, |url|, and |id| are consistent and can be used
   // to query the Play Store for a native app. The query may not necessarily
   // succeed (e.g. |id| doesn't map to anything), but if this method returns
   // true, only a native app banner may be shown, and the web app banner flow
   // will not be run.
   bool CanHandleNonWebApp(const std::string& platform,
                           const GURL& url,
                           const std::string& id);
 
+  // Called by |ShowBanner()| which may check whether the WebAPK Install API is
+  // availabel asynchrously.
+  void ShowBannerImpl(content::WebContents* contents,
+                      bool can_use_webapk_install_flow);
+
+  // Called when the check of whether the Google Play Install API is available
+  // is done.
+  void OnCanUseGooglePlayInstallApi(content::WebContents* contents,
+                                    bool can_use_webapk_install_flow);
+
   // The Java-side AppBannerManager.
   base::android::ScopedJavaGlobalRef<jobject> java_banner_manager_;
 
   // Java-side object containing data about a native app.
   base::android::ScopedJavaGlobalRef<jobject> native_app_data_;
 
   // App package name for a native app banner.
   std::string native_app_package_;
 
+  base::WeakPtrFactory<AppBannerManagerAndroid> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(AppBannerManagerAndroid);
 };
 
 }  // namespace banners
 
 #endif  // CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_