Fix issue 20934: Omnibox keyboard behavior wrong for "See recent pages in his...

chrome/browser/autocomplete/autocomplete_edit_view_gtk.h

 // Copyright (c) 2009 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 CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_GTK_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 367 matching lines @@
   // is released (we only do so if the view was initially unfocused).
   bool text_view_focused_before_button_press_;
 
 #if !defined(TOOLKIT_VIEWS)
   // Supplies colors, et cetera.
   GtkThemeProvider* theme_provider_;
 
   NotificationRegistrar registrar_;
 #endif
 
+  // Indicates if Enter key was pressed.
+  //
+  // It's used in the key press handler to detect an Enter key press event
+  // during sync dispatch of "end-user-action" signal so that an unexpected
+  // change caused by the event can be ignored in OnAfterPossibleChange().
+  bool enter_was_pressed_;
+
   // Indicates if Tab key was pressed.
   //
   // It's only used in the key press handler to detect a Tab key press event
   // during sync dispatch of "move-focus" signal.
   bool tab_was_pressed_;
 
   // Indicates that user requested to paste clipboard.
   // The actual paste clipboard action might be performed later if the
   // clipboard is not empty.
   bool paste_clipboard_requested_;
 
   // If a character is inserted, store it in this variable so that it can
   // be used later in "key-press-event" signal handler to determine if a Tab or
   // Enter key event is handled by IME or not.
   char char_inserted_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteEditViewGtk);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_GTK_H_