Create a NavigationEntry for the initial blank page.

chrome/browser/password_manager/chrome_password_manager_client.cc

 // Copyright 2014 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/password_manager/chrome_password_manager_client.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/memory/singleton.h"
@@ skipping 556 matching lines @@
       base::FieldTrialList::FindFullName("PasswordManagerStateForSyncSignin");
   return group_name != "Disabled";
 }
 
 const GURL& ChromePasswordManagerClient::GetMainFrameURL() const {
   return web_contents()->GetVisibleURL();
 }
 
 const GURL& ChromePasswordManagerClient::GetLastCommittedEntryURL() const {
   DCHECK(web_contents());
-  content::NavigationEntry* entry =
-      web_contents()->GetController().GetLastCommittedEntry();
-  if (!entry)
-    return GURL::EmptyGURL();
-
-  return entry->GetURL();
+  // TODO(creis): Clean up rest of uses from
+  // https://codereview.chromium.org/1260263002.
+  return web_contents()->GetController().GetLastCommittedEntry()->GetURL();
 }
 
 const password_manager::CredentialsFilter*
 ChromePasswordManagerClient::GetStoreResultFilter() const {
   return &credentials_filter_;
 }