Refactor ManifestIconSelector and update it for Manifest.icon.purpose

chrome/browser/android/banners/app_banner_manager_android.cc

Index: chrome/browser/android/banners/app_banner_manager_android.cc
diff --git a/chrome/browser/android/banners/app_banner_manager_android.cc b/chrome/browser/android/banners/app_banner_manager_android.cc
index 8ae8d3c3811869b3aaf3cf342be763678a4dab16..e5f96225074296d8df1ec0f325b08f56ee755f47 100644
--- a/chrome/browser/android/banners/app_banner_manager_android.cc
+++ b/chrome/browser/android/banners/app_banner_manager_android.cc
@@ -77,7 +77,8 @@ base::Closure AppBannerManagerAndroid::FetchWebappSplashScreenImageCallback(
       ShortcutHelper::GetMinimumSplashImageSizeInPx();
   GURL image_url = ManifestIconSelector::FindBestMatchingIcon(
       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);
 
   return base::Bind(&ShortcutHelper::FetchSplashScreenImage, contents,
                     image_url, ideal_splash_image_size_in_px,