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

chrome/browser/autocomplete/autocomplete_edit_view_gtk.h

Index: chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
diff --git a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
index 4508ffa7d41aa4c937a8a1c8fc9c956ad8fd3f03..1f3e25ff67748cb5c579c6948324865b3b215691 100644
--- a/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
+++ b/chrome/browser/autocomplete/autocomplete_edit_view_gtk.h
@@ -144,13 +144,12 @@ class AutocompleteEditViewGtk : public AutocompleteEditView,
   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();
@@ -183,8 +182,6 @@ class AutocompleteEditViewGtk : public AutocompleteEditView,
   // the animation state.
   void UpdateInstantViewColors();
 
-  bool CommitInstantSuggestion();
-
   GtkWidget* text_view() {
     return text_view_;
   }
@@ -312,6 +309,12 @@ class AutocompleteEditViewGtk : public AutocompleteEditView,
   // Return the number of characers in the current buffer.
   int GetTextLength() const;
 
+  // Return the cursor position in the current buffer, in number of characters.
+  int GetCursorPosition() const;
+
+  // Set the cursor position in the current buffer, in number of characters.
+  void SetCursorPosition(int cursor_position);
+
   // Try to parse the current text as a URL and colorize the components.
   void EmphasizeURLComponents();