Hitting Tab should always move cursor to end of omnibox text.

chrome/browser/autocomplete/autocomplete_edit_view_gtk.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include <gtk/gtk.h>
 
@@ skipping 126 matching lines @@
   virtual void OnTemporaryTextMaybeChanged(const string16& display_text,
                                            bool save_original_selection);
   virtual bool OnInlineAutocompleteTextMaybeChanged(
       const string16& display_text, size_t user_text_length);
   virtual void OnRevertTemporaryText();
   virtual void OnBeforePossibleChange();
   virtual bool OnAfterPossibleChange();
   virtual gfx::NativeView GetNativeView() const;
   virtual CommandUpdater* GetCommandUpdater();
   virtual void SetInstantSuggestion(const string16& suggestion);
+  virtual string16 GetInstantSuggestion() const;
   virtual int TextWidth() const;
   virtual bool IsImeComposing() const;
 
 #if defined(TOOLKIT_VIEWS)
   virtual views::View* AddToView(views::View* parent);
-  virtual bool CommitInstantSuggestion(const string16& typed_text,
-                                       const string16& suggested_text);
 
   // Enables accessibility on AutocompleteEditView.
   void EnableAccessibility();
 
   // A factory method to create an AutocompleteEditView instance initialized for
   // linux_views.  This currently returns an instance of
   // AutocompleteEditViewGtk only, but AutocompleteEditViewViews will
   // be added as an option when TextfieldViews is enabled.
   static AutocompleteEditView* Create(AutocompleteEditController* controller,
                                       ToolbarModel* toolbar_model,
@@ skipping 12 matching lines @@
   virtual void AnimationEnded(const ui::Animation* animation);
   virtual void AnimationProgressed(const ui::Animation* animation);
   virtual void AnimationCanceled(const ui::Animation* animation);
 
   // Sets the colors of the text view according to the theme.
   void SetBaseColor();
   // Sets the colors of the instant suggestion view according to the theme and
   // the animation state.
   void UpdateInstantViewColors();
 
-  bool CommitInstantSuggestion();
-
   GtkWidget* text_view() {
     return text_view_;
   }
 
  private:
   CHROMEG_CALLBACK_0(AutocompleteEditViewGtk, void, HandleBeginUserAction,
                      GtkTextBuffer*);
   CHROMEG_CALLBACK_0(AutocompleteEditViewGtk, void, HandleEndUserAction,
                      GtkTextBuffer*);
   CHROMEG_CALLBACK_2(AutocompleteEditViewGtk, void, HandleMarkSet,
@@ skipping 97 matching lines @@
   // blocks the "mark-set" signal handler.
   void StartUpdatingHighlightedText();
 
   // Finish updating |text_buffer_|'s highlighting such that future changes will
   // automatically update the PRIMARY selection.  Undoes
   // StartUpdatingHighlightedText()'s changes.
   void FinishUpdatingHighlightedText();
 
   // Get the character indices of the current selection.  This honors
   // direction, cp_max is the insertion point, and cp_min is the bound.
-  CharRange GetSelection();
+  CharRange GetSelection() const;
 
   // Translate from character positions to iterators for the current buffer.
   void ItersFromCharRange(const CharRange& range,
                           GtkTextIter* iter_min,
                           GtkTextIter* iter_max);
 
   // Return the number of characers in the current buffer.
   int GetTextLength() const;
 
+  // Places the caret at the given position. This clears any selection.
+  void PlaceCaretAt(int pos);
+
+  // Returns true if the caret is at the end of the content.
+  bool IsCaretAtEnd() const;
+
   // Try to parse the current text as a URL and colorize the components.
   void EmphasizeURLComponents();
 
   // Internally invoked whenever the text changes in some way.
   void TextChanged();
 
   // Save |selected_text| as the PRIMARY X selection. Unlike
   // OwnPrimarySelection(), this won't set an owner or use callbacks.
   void SavePrimarySelection(const std::string& selected_text);
 
@@ skipping 200 matching lines @@
   ui::GtkSignalRegistrar signals_;
 
 #if defined(TOOLKIT_VIEWS)
   scoped_ptr<AccessibleWidgetHelper> accessible_widget_helper_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteEditViewGtk);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_GTK_H_