Add "previewing on hover" support for single-field autocomplete input

components/autofill/content/browser/autofill_driver_impl.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_BROWSER_AUTOFILL_DRIVER_IMPL_H_
 #define COMPONENTS_AUTOFILL_CONTENT_BROWSER_AUTOFILL_DRIVER_IMPL_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 42 matching lines @@
                                       const FormData& data) OVERRIDE;
   virtual void SendAutofillTypePredictionsToRenderer(
       const std::vector<FormStructure*>& forms) OVERRIDE;
   virtual void RendererShouldAcceptDataListSuggestion(
       const base::string16& value) OVERRIDE;
   virtual void RendererShouldAcceptPasswordAutofillSuggestion(
       const base::string16& username) OVERRIDE;
   virtual void RendererShouldClearFilledForm() OVERRIDE;
   virtual void RendererShouldClearPreviewedForm() OVERRIDE;
   virtual void RendererShouldSetNodeText(const base::string16& value) OVERRIDE;
+  virtual void RendererShouldPreviewAutoCompleteNode(
+      const base::string16& value) OVERRIDE;

[Ilya Sherman, 2014/02/22 05:59:51]

nit: Let's name this method "RendererShouldPreviewFieldWithValue()", and rename
the method above to "RendererShouldFillFieldWithValue()".  Or, feel free to
brainstorm even better names.  However, I think it's useful to have the names
have a clear parallel between them, since they perform very similar functions.

[ziran.sun, 2014/02/27 15:38:11]

Done.

[ziran.sun, 2014/02/27 15:38:11]

Done.

 
   // Returns the WebContents with which this instance is associated.
   content::WebContents* GetWebContents();
 
   AutofillExternalDelegate* autofill_external_delegate() {
     return &autofill_external_delegate_;
   }
 
   AutofillManager* autofill_manager() { return autofill_manager_.get(); }
 
@@ skipping 27 matching lines @@
   // case where the Autofill native UI is enabled.
   AutofillExternalDelegate autofill_external_delegate_;
 
   // Driver for the interactive autocomplete dialog.
   RequestAutocompleteManager request_autocomplete_manager_;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_BROWSER_AUTOFILL_DRIVER_IMPL_H_