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

chrome/browser/autocomplete/autocomplete_edit_view_win.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_WIN_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
@@ skipping 116 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;
 
   virtual views::View* AddToView(views::View* parent);
-  virtual bool CommitInstantSuggestion(const string16& typed_text,
-                                       const string16& suggested_text);
 
   int GetPopupMaxYCoordinate();
 
   // Exposes custom IAccessible implementation to the overall MSAA hierarchy.
   IAccessible* GetIAccessible();
 
   void SetDropHighlightPosition(int position);
   int drop_highlight_position() const { return drop_highlight_position_; }
 
   // Returns true if a drag a drop session was initiated by this edit.
@@ skipping 56 matching lines @@
 
   // ui::SimpleMenuModel::Delegate
   virtual bool IsCommandIdChecked(int command_id) const;
   virtual bool IsCommandIdEnabled(int command_id) const;
   virtual bool GetAcceleratorForCommandId(int command_id,
                                           ui::Accelerator* accelerator);
   virtual bool IsItemForCommandIdDynamic(int command_id) const;
   virtual string16 GetLabelForCommandId(int command_id) const;
   virtual void ExecuteCommand(int command_id);
 
+  // Returns true if the caret is at the end of the content.
+  bool IsCaretAtEnd() const;
+
  private:
   enum MouseButton {
     kLeft  = 0,
     kRight = 1,
   };
 
   // This object freezes repainting of the edit until the object is destroyed.
   // Some methods of the CRichEditCtrl draw synchronously to the screen.  If we
   // don't freeze, the user will see a rapid series of calls to these as
   // flickers.
@@ skipping 298 matching lines @@
   // striken-out when displaying an insecure scheme.
   url_parse::Component insecure_scheme_component_;
 
   // Instance of accessibility information and handling.
   mutable ScopedComPtr<IAccessible> autocomplete_accessibility_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteEditViewWin);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_VIEW_WIN_H_