Suggest to fill password change forms

components/autofill/content/renderer/password_autofill_agent.h

 // 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.
 
 #ifndef COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_
 
 #include <map>
+#include <set>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "components/autofill/core/common/form_data_predictions.h"
 #include "components/autofill/core/common/password_form_field_prediction_map.h"
 #include "components/autofill/core/common/password_form_fill_data.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/public/renderer/render_view_observer.h"
@@ skipping 152 matching lines @@
   // RenderFrameObserver:
   bool OnMessageReceived(const IPC::Message& message) override;
   void DidFinishDocumentLoad() override;
   void DidFinishLoad() override;
   void FrameDetached() override;
   void FrameWillClose() override;
   void DidCommitProvisionalLoad(bool is_new_navigation,
                                 bool is_same_page_navigation) override;
   void WillSendSubmitEvent(const blink::WebFormElement& form) override;
   void WillSubmitForm(const blink::WebFormElement& form) override;
+  void FocusedNodeChanged(const blink::WebNode& node) override;
 
   // Legacy RenderViewObserver:
   void DidStartLoading();
   void DidStopLoading();
   void LegacyDidStartProvisionalLoad(blink::WebLocalFrame* frame);
 
   // RenderView IPC handlers:
   void OnFillPasswordForm(int key, const PasswordFormFillData& form_data);
   void OnSetLoggingState(bool active);
   void OnAutofillUsernameAndPasswordDataReceived(
@@ skipping 72 matching lines @@
   // Set if the user might be submitting a password form on the current page,
   // but the submit may still fail (i.e. doesn't pass JavaScript validation).
   scoped_ptr<PasswordForm> provisionally_saved_form_;
 
   // Contains the most recent text that user typed or PasswordManager autofilled
   // in input elements. Used for storing username/password before JavaScript
   // changes them.
   std::map<const blink::WebInputElement, blink::WebString>
       nonscript_modified_values_;
 
+  // Contains all username fields that were in focus. It means that these fields
+  // are visible to the user.
+  std::set<const blink::WebInputElement> had_focus_username_fields_;
+
   PasswordValueGatekeeper gatekeeper_;
 
   // True indicates that user debug information should be logged.
   bool logging_state_active_;
 
   // True indicates that the username field was autofilled, false otherwise.
   bool was_username_autofilled_;
   // True indicates that the password field was autofilled, false otherwise.
   bool was_password_autofilled_;
 
   // Records original starting point of username element's selection range
   // before preview.
   int username_selection_start_;
 
   // True indicates that all frames in a page have been rendered.
   bool did_stop_loading_;
 
   // Contains server predictions for username, password and/or new password
   // fields for individual forms.
   FormsPredictionsMap form_predictions_;
 
   base::WeakPtrFactory<PasswordAutofillAgent> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_