Fix open paths for download ContentId work

chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java b/chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java
index d60f9bfd916807bcfea72ba1ae893365edcebf63..23c71249f430dcc62a4abfed9aaf7609a3192e38 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/items/OfflineContentAggregatorNotificationBridgeUi.java
@@ -41,6 +41,11 @@ public class OfflineContentAggregatorNotificationBridgeUi
         destroyServiceDelegate();
     }
 
+    /** @see OfflineContentProvider#openItem(ContentId) */
+    public void openItem(ContentId id) {
+        mProvider.openItem(id);
+    }
+
     // OfflineContentProvider.Observer implementation.
     @Override
     public void onItemsAvailable() {}