Determine whether to show "Add to Homescreen" dialog or WebAPK infobar

chrome/browser/android/webapps/add_to_homescreen_data_fetcher.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 "chrome/browser/android/webapps/add_to_homescreen_data_fetcher.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 38 matching lines @@
       offline_pages::OfflinePageUtils::MaybeGetOnlineURLForOfflineURL(
           browser_context, original_url);
   if (online_url.is_valid())
     return online_url;
 
   return original_url;
 }
 
 InstallableParams ParamsToPerformInstallableCheck(int ideal_icon_size_in_dp,
                                                   int minimum_icon_size_in_dp) {
-  // TODO(hanxi): change check_installable to true for WebAPKs.
   InstallableParams params;
   params.ideal_icon_size_in_dp = ideal_icon_size_in_dp;
   params.minimum_icon_size_in_dp = minimum_icon_size_in_dp;
   params.check_installable = false;
   params.fetch_valid_icon = true;
   return params;
 }
 
 }  // namespace
 
@@ skipping 96 matching lines @@
   }
 
   // Save the splash screen URL for the later download.
   splash_screen_url_ = ManifestIconSelector::FindBestMatchingIcon(
       data.manifest.icons, ideal_splash_image_size_in_dp_,
       minimum_splash_image_size_in_dp_);
 
   weak_observer_->OnUserTitleAvailable(shortcut_info_.user_title);
 
   if (data.icon) {
-    // TODO(hanxi): implement WebAPK path if shortcut_info_.url has a secure
-    // scheme and data.is_installable is true.
     shortcut_info_.icon_url = data.icon_url;
 
     // base::Bind copies the arguments internally, so it is safe to pass it
     // data.icon (which is not owned by us).
     content::BrowserThread::GetBlockingPool()
         ->PostWorkerTaskWithShutdownBehavior(
             FROM_HERE,
             base::Bind(
                 &AddToHomescreenDataFetcher::CreateLauncherIconInBackground,
                 this, *(data.icon)),
@@ skipping 107 matching lines @@
 void AddToHomescreenDataFetcher::NotifyObserver(const SkBitmap& icon) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   if (!web_contents() || !weak_observer_ || is_icon_saved_)
     return;
 
   is_icon_saved_ = true;
   shortcut_icon_ = icon;
   is_ready_ = true;
   weak_observer_->OnDataAvailable(shortcut_info_, shortcut_icon_);
 }