Move timeout timer into WebApkIconHasher

chrome/browser/android/webapk/webapk_update_data_fetcher.cc

Index: chrome/browser/android/webapk/webapk_update_data_fetcher.cc
diff --git a/chrome/browser/android/webapk/webapk_update_data_fetcher.cc b/chrome/browser/android/webapk/webapk_update_data_fetcher.cc
index 5b8e87a48e4dd5ab15fef5efee4a6b1d0c66e6fe..2443cd0722bd8ef894a0ef5591ad6448bde8ae89 100644
--- a/chrome/browser/android/webapk/webapk_update_data_fetcher.cc
+++ b/chrome/browser/android/webapk/webapk_update_data_fetcher.cc
@@ -152,13 +152,14 @@ void WebApkUpdateDataFetcher::OnDidGetInstallableData(
   info_.best_primary_icon_url = data.primary_icon_url;
   best_primary_icon_ = *data.primary_icon;
 
-  icon_hasher_.reset(new WebApkIconHasher());
   Profile* profile =
       Profile::FromBrowserContext(web_contents()->GetBrowserContext());
-  icon_hasher_->DownloadAndComputeMurmur2Hash(
+
+  icon_hasher_.reset(new WebApkIconHasher(
       profile->GetRequestContext(), data.primary_icon_url,
       base::Bind(&WebApkUpdateDataFetcher::OnGotIconMurmur2Hash,
-                 weak_ptr_factory_.GetWeakPtr()));
+                 weak_ptr_factory_.GetWeakPtr())));
+  icon_hasher_->DownloadAndComputeMurmur2Hash();
 }
 
 void WebApkUpdateDataFetcher::OnGotIconMurmur2Hash(