Allow the app banner installability check to run on page load.

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"
@@ skipping 21 matching lines @@
     : public AppBannerManager,
       public content::WebContentsUserData<AppBannerManagerAndroid> {
  public:
   explicit AppBannerManagerAndroid(content::WebContents* web_contents);
   ~AppBannerManagerAndroid() override;
 
   // Returns a reference to the Java-side AppBannerManager owned by this object.
   const base::android::ScopedJavaGlobalRef<jobject>& GetJavaBannerManager()
       const;
 
-  // Returns true if this object is currently active.
+  // Returns true if the banner pipeline is currently running.
   bool IsActiveForTesting(JNIEnv* env,
                           const base::android::JavaParamRef<jobject>& jobj);
 
+  // Informs the InstallableManager for the WebContents we are attached to that
+  // the add to homescreen menu item has been tapped.
+  void RecordMenuItemAddToHomescreen(
+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& jobj);
+
+  // Informs the InstallableManager for the WebContents we are attached to that
+  // the menu has been opened.
+  void RecordMenuOpen(JNIEnv* env,
+                      const base::android::JavaParamRef<jobject>& jobj);
+
   // Called when the Java-side has retrieved information for the app.
   // Returns |false| if an icon fetch couldn't be kicked off.
   bool OnAppDetailsRetrieved(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jobject>& japp_data,
       const base::android::JavaParamRef<jstring>& japp_title,
       const base::android::JavaParamRef<jstring>& japp_package,
       const base::android::JavaParamRef<jstring>& jicon_url);
 
@@ skipping 62 matching lines @@
 
   // Whether WebAPKs can be installed.
   bool can_install_webapk_;
 
   DISALLOW_COPY_AND_ASSIGN(AppBannerManagerAndroid);
 };
 
 }  // namespace banners
 
 #endif  // CHROME_BROWSER_ANDROID_BANNERS_APP_BANNER_MANAGER_ANDROID_H_