Create a NavigationEntry for the initial blank page.

chrome/browser/sync/glue/synced_tab_delegate_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/sync/glue/synced_tab_delegate.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "components/sync_driver/glue/synced_window_delegate.h"
 #include "content/public/browser/navigation_entry.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 26 matching lines @@
       pending_index_(-1),
       current_index_(0),
       pending_entry_(NULL),
       window_(new FakeSyncedWindowDelegate()) {}
 
   SessionID::id_type GetWindowId() const override { return 0; }
   SessionID::id_type GetSessionId() const override { return 0; }
   bool IsBeingDestroyed() const override { return false; }
   Profile* profile() const override { return NULL; }
   std::string GetExtensionAppId() const override { return ""; }
+  bool IsInitialBlankNavigation() const override {
+    // This differs from NavigationControllerImpl, which has an initial blank
+    // NavigationEntry.
+    return GetEntryCount() == 0;
+  }
   int GetCurrentEntryIndex() const override { return current_index_; }
   int GetEntryCount() const override { return indexed_entries_.size(); }
   int GetPendingEntryIndex() const override { return pending_index_; }
   content::NavigationEntry* GetPendingEntry() const override {
     return pending_entry_;
   }
   content::NavigationEntry* GetEntryAtIndex(int i) const override {
     return indexed_entries_[i];
   }
   content::NavigationEntry* GetActiveEntry() const override { return NULL; }
@@ skipping 120 matching lines @@
   scoped_ptr<content::NavigationEntry>
       entry3(content::NavigationEntry::Create());
   entry3->SetURL(GURL("http://www.google.com"));
   tab_.AppendIndexedEntry(entry3.get());
 
   // With one valid, expect true.
   EXPECT_TRUE(tab_.ShouldSync());
 }
 
 } // namespace browser_sync