Update WebApkInstaller to support badge icon in installation.

chrome/browser/android/banners/app_banner_manager_android.h

Index: chrome/browser/android/banners/app_banner_manager_android.h
diff --git a/chrome/browser/android/banners/app_banner_manager_android.h b/chrome/browser/android/banners/app_banner_manager_android.h
index 4fcdeeff7b1e76fbd214f709d003a95301a9753f..6b99c720948b88846b5298ca42fe6559c651bae5 100644
--- a/chrome/browser/android/banners/app_banner_manager_android.h
+++ b/chrome/browser/android/banners/app_banner_manager_android.h
@@ -12,6 +12,7 @@
 #include "base/macros.h"
 #include "chrome/browser/banners/app_banner_manager.h"
 #include "content/public/browser/web_contents_user_data.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 
 namespace banners {
 
@@ -105,7 +106,7 @@ class AppBannerManagerAndroid
   GURL badge_icon_url_;
 
   // The badge icon object.
-  std::unique_ptr<SkBitmap> badge_icon_;
+  SkBitmap badge_icon_;
 
   // The Java-side AppBannerManager.
   base::android::ScopedJavaGlobalRef<jobject> java_banner_manager_;