[Password Generation] Enable generation for dynamically created forms.

components/autofill/content/renderer/password_generation_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_GENERATION_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 
 #include <map>
 #include <utility>
 #include <vector>
@@ skipping 20 matching lines @@
   explicit PasswordGenerationAgent(content::RenderView* render_view);
   virtual ~PasswordGenerationAgent();
 
   // Returns true if the field being changed is one where a generated password
   // is being offered. Updates the state of the popup if necessary.
   bool TextDidChangeInTextField(const blink::WebInputElement& element);
 
   // Returns true if the newly focused node caused the generation UI to show.
   bool FocusedNodeHasChanged(const blink::WebNode& node);
 
+  // Called when new form controls are inserted.
+  void OnDynamicFormsSeen(blink::WebLocalFrame* frame);
+
   // The length that a password can be before the UI is hidden.
   static const size_t kMaximumOfferSize = 5;
 
  protected:
   // Returns true if this document is one that we should consider analyzing.
   // Virtual so that it can be overriden during testing.
   virtual bool ShouldAnalyzeDocument(const blink::WebDocument& document) const;
 
   // RenderViewObserver:
   virtual bool OnMessageReceived(const IPC::Message& message) override;
 
   // Use to force enable during testing.
   void set_enabled(bool enabled) { enabled_ = enabled; }
 
  private:
   // RenderViewObserver:
   virtual void DidFinishDocumentLoad(blink::WebLocalFrame* frame) override;
   virtual void DidFinishLoad(blink::WebLocalFrame* frame) override;
 
   // Message handlers.
   void OnFormNotBlacklisted(const PasswordForm& form);
   void OnPasswordAccepted(const base::string16& password);
   void OnAccountCreationFormsDetected(
       const std::vector<autofill::FormData>& forms);
 
+  // Helper function that will try and populate |password_elements_| and
+  // |possible_account_creation_form_|.
+  void FindPossibleGenerationForm(blink::WebLocalFrame* frame);
+
   // Helper function to decide if |passwords_| contains password fields for
   // an account creation form. Sets |generation_element_| to the field that
   // we want to trigger the generation UI on.
   void DetermineGenerationElement();
 
   // Show password generation UI anchored at |generation_element_|.
   void ShowGenerationPopup();
 
   // Show UI for editing a generated password at |generation_element_|.
   void ShowEditingPopup();
@@ skipping 42 matching lines @@
 
   // If this feature is enabled. Controlled by Finch.
   bool enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_