Don't use FormFieldData only as a key in a map

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 "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 984 matching lines @@
     // This is a new navigation, so require a new user gesture before filling in
     // passwords.
     gatekeeper_.Reset();
   } else {
     if (logger)
       logger->LogMessage(Logger::STRING_DECISION_DROP);
   }
 }
 
 void PasswordAutofillAgent::OnFillPasswordForm(
+    int key,
     const PasswordFormFillData& form_data) {
   if (usernames_usage_ == NOTHING_TO_AUTOFILL) {
     if (form_data.other_possible_usernames.size())
       usernames_usage_ = OTHER_POSSIBLE_USERNAMES_PRESENT;
     else if (usernames_usage_ == NOTHING_TO_AUTOFILL)
       usernames_usage_ = OTHER_POSSIBLE_USERNAMES_ABSENT;
   }
 
   FormElementsList forms;
   // We own the FormElements* in forms.
@@ skipping 36 matching lines @@
     // with identical markup.
     if (login_to_password_info_.find(username_element) !=
         login_to_password_info_.end())
       continue;
 
     PasswordInfo password_info;
     password_info.fill_data = form_data;
     password_info.password_field = password_element;
     login_to_password_info_[username_element] = password_info;
     password_to_username_[password_element] = username_element;
-
-    FormData form;
-    FormFieldData field;
-    if (form_contains_username_field) {
-      FindFormAndFieldForFormControlElement(
-          username_element, &form, &field, REQUIRE_NONE);
-    }
-
-    Send(new AutofillHostMsg_AddPasswordFormMapping(
-        routing_id(), field, form_data));
+    login_to_password_info_key_[username_element] = key;
   }
 }
 
 void PasswordAutofillAgent::OnSetLoggingState(bool active) {
   logging_state_active_ = active;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // PasswordAutofillAgent, private:
 
@@ skipping 14 matching lines @@
     return false;
 
   FormData form;
   FormFieldData field;
   FindFormAndFieldForFormControlElement(
       user_input, &form, &field, REQUIRE_NONE);
 
   blink::WebInputElement selected_element = user_input;
   gfx::Rect bounding_box(selected_element.boundsInViewportSpace());
 
+  LoginToPasswordInfoKeyMap::const_iterator key_it =
+      login_to_password_info_key_.find(user_input);
+  DCHECK(key_it != login_to_password_info_key_.end());
+
   float scale = web_view_->pageScaleFactor();
   gfx::RectF bounding_box_scaled(bounding_box.x() * scale,
                                  bounding_box.y() * scale,
                                  bounding_box.width() * scale,
                                  bounding_box.height() * scale);
   Send(new AutofillHostMsg_ShowPasswordSuggestions(
-      routing_id(), field, user_input.value(), show_all, bounding_box_scaled));
+      routing_id(), key_it->second, field.text_direction, user_input.value(),
+      show_all, bounding_box_scaled));
 
   bool suggestions_present = false;
   if (GetSuggestionsStats(fill_data, user_input.value(), show_all,
                           &suggestions_present)) {
     usernames_usage_ = OTHER_POSSIBLE_USERNAME_SHOWN;
   }
   return suggestions_present;
 }
 
 void PasswordAutofillAgent::PerformInlineAutocomplete(
@@ skipping 31 matching lines @@
   }
 #endif
 }
 
 void PasswordAutofillAgent::FrameClosing(const blink::WebFrame* frame) {
   for (LoginToPasswordInfoMap::iterator iter = login_to_password_info_.begin();
        iter != login_to_password_info_.end();) {
     // There may not be a username field, so get the frame from the password
     // field.
     if (iter->second.password_field.document().frame() == frame) {
+      login_to_password_info_key_.erase(iter->first);
       password_to_username_.erase(iter->second.password_field);
       login_to_password_info_.erase(iter++);
     } else {
       ++iter;
     }
   }
   for (FrameToPasswordFormMap::iterator iter =
            provisionally_saved_forms_.begin();
        iter != provisionally_saved_forms_.end();) {
     if (iter->first == frame)
@@ skipping 53 matching lines @@
   scoped_ptr<PasswordForm> password_form(CreatePasswordForm(form));
   if (!password_form || (restriction == RESTRICTION_NON_EMPTY_PASSWORD &&
                          password_form->password_value.empty() &&
                          password_form->new_password_value.empty())) {
     return;
   }
   provisionally_saved_forms_[frame].reset(password_form.release());
 }
 
 }  // namespace autofill