Linux: Simplify omnibox selection code and stop taking back selection.

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 344 matching lines @@
   std::wstring text_before_change_;
   CharRange sel_before_change_;
 
   // The most-recently-selected text from the entry.  This is updated on-the-fly
   // as the user selects text.  It is used in cases where we need to make the
   // PRIMARY selection persist even after the user has unhighlighted the text in
   // the view (e.g. when they highlight some text and then click to unhighlight
   // it, we pass this string to SavePrimarySelection()).
   std::string selected_text_;
 
-  // Has the current value of |selected_text_| been saved as the PRIMARY
-  // selection?
-  bool selection_saved_;
-
   // ID of the signal handler for "mark-set" on |text_buffer_|.
   gulong mark_set_handler_id_;
 
   // Is the first mouse button currently down?
   bool button_1_pressed_;
 
   // Did the user change the selected text in the middle of the current click?
   // If so, we don't select all of the text when the button is released -- we
   // don't want to blow away their selection.
   bool text_selected_during_click_;
@@ skipping 23 matching lines @@
 
   // 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_