Add password manager autocomplete suggestion when a username element in clicked.

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 <vector>
 
@@ skipping 30 matching lines @@
                                 const blink::WebKeyboardEvent& event);
 
   // Fills the password associated with user name |username|. Returns true if
   // the username and password fields were filled, false otherwise.
   bool DidAcceptAutofillSuggestion(const blink::WebNode& node,
                                    const blink::WebString& username);
   // A no-op.  Password forms are not previewed, so they do not need to be
   // cleared when the selection changes.  However, this method returns
   // true when |node| is fillable by password Autofill.
   bool DidClearAutofillSelection(const blink::WebNode& node);
-  // Shows an Autofill popup with username suggestions for |element|.
+  // Shows an Autofill popup with username suggestions for |element|. If
+  // |show_all| is |true|, will show all possible suggestions for that element,
+  // otherwise shows suggestions based on current value of |element|.
   // Returns true if any suggestions were shown, false otherwise.
-  bool ShowSuggestions(const blink::WebInputElement& element);
+  bool ShowSuggestions(const blink::WebInputElement& element, bool show_all);
 
   // Called when new form controls are inserted.
   void OnDynamicFormsSeen(blink::WebFrame* frame);
 
  protected:
   virtual bool OriginCanAccessPasswordManager(
       const blink::WebSecurityOrigin& origin);
 
  private:
   friend class PasswordAutofillAgentTest;
@@ skipping 53 matching lines @@
   // RenderView IPC handlers:
   void OnFillPasswordForm(const PasswordFormFillData& form_data);
 
   // Scans the given frame for password forms and sends them up to the browser.
   // If |only_visible| is true, only forms visible in the layout are sent.
   void SendPasswordForms(blink::WebFrame* frame, bool only_visible);
 
   void GetSuggestions(const PasswordFormFillData& fill_data,
                       const base::string16& input,
                       std::vector<base::string16>* suggestions,
-                      std::vector<base::string16>* realms);
+                      std::vector<base::string16>* realms,
+                      bool show_all);
 
   bool ShowSuggestionPopup(const PasswordFormFillData& fill_data,
-                           const blink::WebInputElement& user_input);
+                           const blink::WebInputElement& user_input,
+                           bool show_all);
 
   // Attempts to fill |username_element| and |password_element| with the
   // |fill_data|.  Will use the data corresponding to the preferred username,
   // unless the |username_element| already has a value set.  In that case,
   // attempts to fill the password matching the already filled username, if
   // such a password exists.
   void FillFormOnPasswordRecieved(const PasswordFormFillData& fill_data,
                                   blink::WebInputElement username_element,
                                   blink::WebInputElement password_element);
 
@@ skipping 47 matching lines @@
   bool user_gesture_occurred_;
 
   base::WeakPtrFactory<PasswordAutofillAgent> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordAutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_AUTOFILL_AGENT_H_