Update WebApkInstaller to support badge icon in installation.

chrome/browser/banners/app_banner_manager.cc

Index: chrome/browser/banners/app_banner_manager.cc
diff --git a/chrome/browser/banners/app_banner_manager.cc b/chrome/browser/banners/app_banner_manager.cc
index 726f25f9b08860ac1725368595806c6207059fe0..6000d8f5ff27953e6628a788e11953022e6b741a 100644
--- a/chrome/browser/banners/app_banner_manager.cc
+++ b/chrome/browser/banners/app_banner_manager.cc
@@ -266,7 +266,7 @@ void AppBannerManager::OnDidPerformInstallableCheck(
   DCHECK(data.primary_icon);
 
   primary_icon_url_ = data.primary_icon_url;
-  primary_icon_.reset(new SkBitmap(*data.primary_icon));
+  primary_icon_ = *data.primary_icon;
 
   SendBannerPromptRequest();
 }
@@ -515,7 +515,7 @@ void AppBannerManager::OnBannerPromptReply(
   DCHECK(!manifest_url_.is_empty());
   DCHECK(!manifest_.IsEmpty());
   DCHECK(!primary_icon_url_.is_empty());
-  DCHECK(primary_icon_.get());
+  DCHECK(!primary_icon_.drawsNothing());
 
   TrackBeforeInstallEvent(BEFORE_INSTALL_EVENT_COMPLETE);
   ShowBanner();