Implement NotificationPlatformBridgeWinImpl::OnFailed

Bug: 734095
Change-Id: Ie7226ab3811c7615ab7a077a243f744effa4ca5e
Reviewed-on: https://chromium-review.googlesource.com/979115
Commit-Queue: Xi Cheng <chengx@chromium.org>
Reviewed-by: Finnur Thorarinsson <finnur@chromium.org>
Cr-Commit-Position: refs/heads/master@{#546198}

chrome/browser/notifications/notification_platform_bridge_win.cc

@@ -763,11 +763,13 @@ class NotificationPlatformBridgeWinImpl
     return S_OK;
   }
 
-  HRESULT OnFailed(
-      winui::Notifications::IToastNotification* notification,
-      winui::Notifications::IToastFailedEventArgs* /* arguments */) {
-    // TODO(chengx): Investigate what the correct behavior should be here and
-    // implement it.
+  HRESULT OnFailed(winui::Notifications::IToastNotification* notification,
+                   winui::Notifications::IToastFailedEventArgs* arguments) {
+    HRESULT error_code;
+    HRESULT hr = arguments->get_ErrorCode(&error_code);
+    DCHECK(SUCCEEDED(hr));
+    LOG(ERROR) << "Failed to raise the toast notification, error code: "
+               << std::hex << error_code;
     return S_OK;
   }