Prevent app banners from displaying after desktop add to shelf.

chrome/browser/extensions/bookmark_app_helper.cc

Index: chrome/browser/extensions/bookmark_app_helper.cc
diff --git a/chrome/browser/extensions/bookmark_app_helper.cc b/chrome/browser/extensions/bookmark_app_helper.cc
index 16288753298ed82278dc3e2158a1f9c0fedab42a..a70c1b294760af858479e5a0fa4d389438adb6c1 100644
--- a/chrome/browser/extensions/bookmark_app_helper.cc
+++ b/chrome/browser/extensions/bookmark_app_helper.cc
@@ -11,7 +11,9 @@
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/time/time.h"
 #include "build/build_config.h"
+#include "chrome/browser/banners/app_banner_settings_helper.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher_delegate.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ -690,6 +692,13 @@ void BookmarkAppHelper::FinishInstallation(const Extension* extension) {
     return;
   }
 
+  // Record an app banner added to homescreen event to ensure banners are not
+  // shown for this app.
+  AppBannerSettingsHelper::RecordBannerEvent(
+      contents_, web_app_info_.app_url, web_app_info_.app_url.spec(),
+      AppBannerSettingsHelper::APP_BANNER_EVENT_DID_ADD_TO_HOMESCREEN,
+      base::Time::Now());
+
   Browser* browser = chrome::FindBrowserWithWebContents(contents_);
   if (!browser) {
     // The browser can be null in tests.