Trigger app banner when add to homescreen is pressed and WebAPKs are enabled.

chrome/browser/android/banners/app_banner_manager_android.cc

 // 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.
 
 #include <utility>
 
 #include "chrome/browser/android/banners/app_banner_manager_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/android/banners/app_banner_infobar_delegate_android.h"
 #include "chrome/browser/android/shortcut_helper.h"
+#include "chrome/browser/android/shortcut_info.h"
 #include "chrome/browser/android/webapk/chrome_webapk_host.h"
 #include "chrome/browser/android/webapk/webapk_web_manifest_checker.h"
 #include "chrome/browser/banners/app_banner_metrics.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/manifest/manifest_icon_downloader.h"
 #include "chrome/browser/manifest/manifest_icon_selector.h"
 #include "chrome/browser/ui/android/infobars/app_banner_infobar_android.h"
 #include "chrome/common/chrome_constants.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/frame_navigate_params.h"
@@ skipping 156 matching lines @@
   SendBannerPromptRequest();
 }
 
 void AppBannerManagerAndroid::ShowBanner() {
   content::WebContents* contents = web_contents();
   DCHECK(contents);
 
   infobars::InfoBar* infobar = nullptr;
   if (native_app_data_.is_null()) {
     bool is_webapk = ChromeWebApkHost::AreWebApkEnabled();
+    std::unique_ptr<ShortcutInfo> info = CreateShortcutInfo();
     std::unique_ptr<AppBannerInfoBarDelegateAndroid> delegate(
         new AppBannerInfoBarDelegateAndroid(
-            GetWeakPtr(), app_title_, manifest_url_, manifest_, icon_url_,
+            GetWeakPtr(), app_title_, manifest_url_, std::move(info), icon_url_,
             std::move(icon_), event_request_id(), is_webapk));
 
     infobar = new AppBannerInfoBarAndroid(
         std::move(delegate), manifest_.start_url, is_webapk);
     if (infobar) {
       RecordDidShowBanner("AppBanner.WebApp.Shown");
       TrackDisplayEvent(DISPLAY_EVENT_WEB_APP_BANNER_CREATED);
       ReportStatus(contents, SHOWING_WEB_APP_BANNER);
     } else {
       ReportStatus(contents, FAILED_TO_CREATE_BANNER);
@@ skipping 13 matching lines @@
       ReportStatus(contents, FAILED_TO_CREATE_BANNER);
     }
   }
 
   if (infobar) {
     InfoBarService::FromWebContents(contents)->AddInfoBar(
         base::WrapUnique(infobar));
   }
 }
 
+std::unique_ptr<ShortcutInfo> AppBannerManagerAndroid::CreateShortcutInfo() {

[dominickn, 2016/09/01 05:22:00]

Put this method in the anonymous namespace in AppBannerInfoBarDelegateAndroid,
and call it in the appropriate constructor. That means this file doesn't need to
change.

[Xi Han, 2016/09/01 18:44:14]

Done.

+  std::unique_ptr<ShortcutInfo> info_ptr(new ShortcutInfo(GURL::EmptyGURL()));
+  if (manifest_.IsEmpty())
+    return info_ptr;
+  info_ptr->UpdateFromManifest(manifest_);
+  info_ptr->manifest_url = manifest_url_;
+  info_ptr->icon_url = icon_url_;
+  info_ptr->UpdateSource(ShortcutInfo::SOURCE_APP_BANNER);
+  return info_ptr;
+}
+
 bool AppBannerManagerAndroid::CanHandleNonWebApp(const std::string& platform,
                                                  const GURL& url,
                                                  const std::string& id) {
   if (!CheckPlatformAndId(platform, id))
     return false;
 
   banners::TrackDisplayEvent(DISPLAY_EVENT_NATIVE_APP_BANNER_REQUESTED);
 
   // Send the info to the Java side to get info about the app.
   JNIEnv* env = base::android::AttachCurrentThread();
@@ skipping 94 matching lines @@
 }
 
 // static
 void SetTimeDeltaForTesting(JNIEnv* env,
                             const JavaParamRef<jclass>& clazz,
                             jint days) {
   AppBannerManager::SetTimeDeltaForTesting(days);
 }
 
 }  // namespace banners