[Document mode] Don't ignore tabs that don't have an initial URL

chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java
index e2ed477130aad417ca841ff10a71abb1b6722afc..1274d25b9c362cbd7a91182004d4a9aa316a8fe2 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tabmodel/document/ActivityDelegate.java
@@ -91,8 +91,9 @@ public class ActivityDelegate {
             if (!isValidActivity(isIncognito, intent)) continue;
 
             int tabId = getTabIdFromIntent(intent);
+            if (tabId == Tab.INVALID_TAB_ID) continue;
+
             String initialUrl = getInitialUrlForDocument(intent);
-            if (tabId == Tab.INVALID_TAB_ID || initialUrl == null) continue;
             entries.add(new Entry(tabId, initialUrl));
         }
         return entries;