Collapse the API surface on WebInputEvent via accessor functions.

chrome/browser/ui/autofill/autofill_popup_controller_impl.cc

 // 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.
 
 #include "chrome/browser/ui/autofill/autofill_popup_controller_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 213 matching lines @@
       SetSelectedLine(kNoSelection);
       SelectNextLine();
       return true;
     case ui::VKEY_NEXT:  // Page down.
       SetSelectedLine(GetLineCount() - 1);
       return true;
     case ui::VKEY_ESCAPE:
       Hide();
       return true;
     case ui::VKEY_DELETE:
-      return (event.modifiers & content::NativeWebKeyboardEvent::ShiftKey) &&
+      return (event.modifiers() & content::NativeWebKeyboardEvent::ShiftKey) &&
              RemoveSelectedLine();
     case ui::VKEY_TAB:
       // A tab press should cause the selected line to be accepted, but still
       // return false so the tab key press propagates and changes the cursor
       // location.
       AcceptSelectedLine();
       return false;
     case ui::VKEY_RETURN:
       return AcceptSelectedLine();
     default:
@@ skipping 291 matching lines @@
   // Don't clear view_, because otherwise the popup will have to get regenerated
   // and this will cause flickering.
   suggestions_.clear();
   elided_values_.clear();
   elided_labels_.clear();
 
   selected_line_ = kNoSelection;
 }
 
 }  // namespace autofill