Remove Autofill's ContainsNonNullEntryForNonNullKey.

components/autofill/content/renderer/password_autofill_agent.cc

 // Copyright 2013 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 "components/autofill/content/renderer/password_autofill_agent.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 540 matching lines @@
   }
 
   // Fill if we have an exact match for the username. Note that this sets
   // username to autofilled.
   return FillUserNameAndPassword(
       &username_element, &password_element, fill_data,
       true /* exact_username_match */, false /* set_selection */,
       field_value_and_properties_map, registration_callback, logger);
 }
 
-// Takes a |map| with pointers as keys and linked_ptr as values, and returns
-// true if |key| is not NULL and  |map| contains a non-NULL entry for |key|.
-// Makes sure not to create an entry as a side effect of using the operator [].
-template <class Key, class Value>
-bool ContainsNonNullEntryForNonNullKey(
-    const std::map<Key*, linked_ptr<Value>>& map,
-    Key* key) {
-  if (!key)
-    return false;
-  auto it = map.find(key);
-  return it != map.end() && it->second.get();
-}
-
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // PasswordAutofillAgent, public:
 
 PasswordAutofillAgent::PasswordAutofillAgent(content::RenderFrame* render_frame)
     : content::RenderFrameObserver(render_frame),
       logging_state_active_(false),
       was_username_autofilled_(false),
       was_password_autofilled_(false),
@@ skipping 917 matching lines @@
 PasswordAutofillAgent::GetPasswordManagerDriver() {
   if (!password_manager_driver_) {
     render_frame()->GetRemoteInterfaces()->GetInterface(
         mojo::GetProxy(&password_manager_driver_));
   }
 
   return password_manager_driver_;
 }
 
 }  // namespace autofill