Basic implementation of showing password fill dialog on page load

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 <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "components/autofill/content/renderer/password_form_conversion_utils.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"
 #include "third_party/WebKit/public/web/WebInputElement.h"
 
 namespace blink {
 class WebInputElement;
 class WebKeyboardEvent;
 class WebSecurityOrigin;
 }
 
 namespace autofill {
 
+class RendererSavePasswordProgressLogger;
+
 // This class is responsible for filling password forms.
 class PasswordAutofillAgent : public content::RenderFrameObserver {
  public:
   explicit PasswordAutofillAgent(content::RenderFrame* render_frame);
   ~PasswordAutofillAgent() override;
 
   // WebFrameClient editor related calls forwarded by AutofillAgent.
   // If they return true, it indicates the event was consumed and should not
   // be used for any other autofill activity.
   bool TextFieldDidEndEditing(const blink::WebInputElement& element);
@@ skipping 39 matching lines @@
 
   // Called when an AJAX has succesfully completed. Used to determine if
   // a form has been submitted by AJAX without navigation.
   void AJAXSucceeded();
 
   // Called when the user first interacts with the page after a load. This is a
   // signal to make autofilled values of password input elements accessible to
   // JavaScript.
   void FirstUserGestureObserved();
 
+  // Given password form data |form_data| and a supplied key |key| for
+  // referencing the password info, returns a set of WebInputElements in
+  // |elements|, which must be non-null, that the password manager has values
+  // for filling. Also takes an optional logger |logger| for logging password
+  // autofill behavior.
+  void GetFillableElementFromFormData(
+      int key,
+      const PasswordFormFillData& form_data,
+      RendererSavePasswordProgressLogger* logger,
+      std::vector<blink::WebInputElement>* elements);
+
+  bool logging_state_active() const { return logging_state_active_; }
+
  protected:
   virtual bool OriginCanAccessPasswordManager(
       const blink::WebSecurityOrigin& origin);
 
  private:
   // Ways to restrict which passwords are saved in ProvisionallySavePassword.
   enum ProvisionallySaveRestriction {
     RESTRICTION_NONE,
     RESTRICTION_NON_EMPTY_PASSWORD
   };
@@ skipping 141 matching lines @@
   // Contains server predictions for username, password and/or new password
   // fields for individual forms.
   FormsPredictionsMap form_predictions_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_