Refactor ManifestIconSelector and update it for Manifest.icon.purpose

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 196 matching lines @@
   if (!data.manifest.IsEmpty()) {
     content::RecordAction(
         base::UserMetricsAction("webapps.AddShortcut.Manifest"));
     shortcut_info_.UpdateFromManifest(data.manifest);
     shortcut_info_.manifest_url = data.manifest_url;
   }
 
   // Save the splash screen URL for the later download.
   splash_screen_url_ = ManifestIconSelector::FindBestMatchingIcon(
       data.manifest.icons, ideal_splash_image_size_in_px_,
-      minimum_splash_image_size_in_px_);
+      minimum_splash_image_size_in_px_,
+      content::Manifest::Icon::IconPurpose::ANY);
 
   weak_observer_->OnUserTitleAvailable(shortcut_info_.user_title);
 
   if (data.primary_icon) {
     shortcut_info_.best_icon_url = data.primary_icon_url;
 
     CreateLauncherIcon(*(data.primary_icon));
     return;
   }
 
@@ skipping 84 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_);
 }