Remove the GUID requirement from the ContentId

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java
index 738406b14a526cdea0925adce984ff05b00c18bc..814d12b89a9de60670f062687ec2dadda6931074 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadNotificationService.java
@@ -1016,7 +1016,7 @@ public class DownloadNotificationService extends Service {
     /**
      * Add a download failed notification.
      * @param id       The {@link ContentId} of the download.
-     * @param fileName GUID of the download.
+     * @param fileName Filename of the download.
      * @param icon     A {@link Bitmap} to be used as the large icon for display.
      */
     @VisibleForTesting
@@ -1354,7 +1354,7 @@ public class DownloadNotificationService extends Service {
         }
 
         ContentId id = getContentIdFromIntent(intent);
-        if (id == null || !DownloadSharedPreferenceEntry.isValidGUID(id.id)) return false;
+        if (id == null) return false;
         return true;
     }