[Autofill/Autocomplete Feature] Substring matching instead of prefix matching.

components/autofill/content/renderer/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_AUTOFILL_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 136 matching lines @@
       const std::vector<FormDataPredictions>& forms);
   void OnFillForm(int query_id, const FormData& form);
   void OnFirstUserGestureObservedInTab();
   void OnPing();
   void OnPreviewForm(int query_id, const FormData& form);
 
   // For external Autofill selection.
   void OnClearForm();
   void OnClearPreviewedForm();
   void OnFillFieldWithValue(const base::string16& value);
-  void OnPreviewFieldWithValue(const base::string16& value);
+  void OnPreviewFieldWithValue(const base::string16& value, int match_start);
   void OnAcceptDataListSuggestion(const base::string16& value);
   void OnFillPasswordSuggestion(const base::string16& username,
                                 const base::string16& password);
   void OnPreviewPasswordSuggestion(const base::string16& username,
-                                   const base::string16& password);
+                                   const base::string16& password,
+                                   int start);
 
   // Called when interactive autocomplete finishes. |message| is printed to
   // the console if non-empty.
   void OnRequestAutocompleteResult(
       blink::WebFormElement::AutocompleteResult result,
       const base::string16& message,
       const FormData& form_data);
 
   // Called when an autocomplete request succeeds or fails with the |result|.
   void FinishAutocompleteRequest(
@@ skipping 25 matching lines @@
       FormFieldData* field) WARN_UNUSED_RESULT;
 
   // Set |node| to display the given |value|.
   void FillFieldWithValue(const base::string16& value,
                           blink::WebInputElement* node);
 
   // Set |node| to display the given |value| as a preview.  The preview is
   // visible on screen to the user, but not visible to the page via the DOM or
   // JavaScript.
   void PreviewFieldWithValue(const base::string16& value,
-                             blink::WebInputElement* node);
+                             blink::WebInputElement* node,
+                             int match_start);
 
   // Notifies browser of new fillable forms in |render_frame|.
   void ProcessForms();
 
   // Sends a message to the browser that the form is about to be submitted,
   // only if the particular message has not been previously submitted for the
   // form in the current frame.
   // Additionally, depending on |send_submitted_event| a message is sent to the
   // browser that the form was submitted.
   void SendFormEvents(const blink::WebFormElement& form,
@@ skipping 54 matching lines @@
   bool is_generation_popup_possibly_visible_;
 
   base::WeakPtrFactory<AutofillAgent> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_AUTOFILL_AGENT_H_