[autofill] Adding new API to request an interactive autocomplete UI flow.

content/public/browser/web_contents_delegate.h

 // Copyright (c) 2012 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 CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_
 
 #include <set>
 #include <string>
 
@@ skipping 400 matching lines @@
   // Asks permission to use the camera and/or microphone. If permission is
   // granted, a call should be made to |callback| with the devices. If the
   // request is denied, a call should be made to |callback| with an empty list
   // of devices. |request| has the details of the request (e.g. which of audio
   // and/or video devices are requested, and lists of available devices).
   virtual void RequestMediaAccessPermission(
       WebContents* web_contents,
       const MediaStreamRequest* request,
       const MediaResponseCallback& callback) {}
 
+  // Request to interactively fill out a form using autocomplete.
+  virtual void RequestAutocomplete(WebContents* web_contents) {}
+
 #if defined(OS_ANDROID)
   // Called when a compositing layer becomes available for this web contents
   // so the delegate can add it to the layer tree.
   virtual void AttachLayer(WebContents* web_contents,
                            WebKit::WebLayer* layer) {}
 
   // Called before a compositing layer becomes invalid so the delegate can
   // remove it from the layer tree.
   virtual void RemoveLayer(WebContents* web_contents,
                            WebKit::WebLayer* layer) {}
@@ skipping 11 matching lines @@
   // Called when |this| is no longer the WebContentsDelegate for |source|.
   void Detach(WebContents* source);
 
   // The WebContents that this is currently a delegate for.
   std::set<WebContents*> attached_contents_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_DELEGATE_H_