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

chrome/browser/autocomplete/autocomplete_edit.h

 // Copyright (c) 2010 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_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_H_
 #pragma once
 
 #include "base/string16.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
@@ skipping 30 matching lines @@
   // Sent when the edit is losing focus. |view_gaining_focus| is the view
   // gaining focus and may be null.
   virtual void OnAutocompleteLosingFocus(
       gfx::NativeView view_gaining_focus) = 0;
 
   // Sent prior to OnAutoCompleteAccept and before the model has been reverted.
   // This is only invoked if the popup is closed before invoking
   // OnAutoCompleteAccept.
   virtual void OnAutocompleteWillAccept() = 0;
 
-  // Commits the suggested text. |typed_text| is the current text showing in the
-  // autocomplete. Returns true if the text was committed.
-  virtual bool OnCommitSuggestedText(const string16& typed_text) = 0;
+  // Commits the suggested text. If |skip_inline_autocomplete| is true then the
+  // suggested text will be committed as final text as if it's inputted by the
+  // user, rather than as inline autocomplete suggest.
+  // Returns true if the text was committed.
+  virtual bool OnCommitSuggestedText(bool skip_inline_autocomplete) = 0;
 
   // Accepts the currently showing instant preview, if any, and returns true.
   // Returns false if there is no instant preview showing.
   virtual bool AcceptCurrentInstantPreview() = 0;
 
   // Invoked when the popup is going to change its bounds to |bounds|.
   virtual void OnPopupBoundsChanged(const gfx::Rect& bounds) = 0;
 
   // When the user presses enter or selects a line with the mouse, this
   // function will get called synchronously with the url to open and
@@ skipping 120 matching lines @@
 
   // Updates permanent_text_ to |new_permanent_text|.  Returns true if this
   // change should be immediately user-visible, because either the user is not
   // editing or the edit does not have focus.
   bool UpdatePermanentText(const string16& new_permanent_text);
 
   // Sets the user_text_ to |text|.  Only the View should call this.
   void SetUserText(const string16& text);
 
   // Calls through to SearchProvider::FinalizeInstantQuery.
+  // If |skip_inline_autocomplete| is true then the |suggest_text| will be
+  // turned into final text instead of inline autocomplete suggest.
   void FinalizeInstantQuery(const string16& input_text,
-                            const string16& suggest_text);
+                            const string16& suggest_text,
+                            bool skip_inline_autocomplete);
 
   // Reverts the edit model back to its unedited state (permanent text showing,
   // no user input in progress).
   void Revert();
 
   // Directs the popup to start autocomplete.
   void StartAutocomplete(bool has_selected_text,
                          bool prevent_inline_autocomplete) const;
 
   // Determines whether the user can "paste and go", given the specified text.
@@ skipping 280 matching lines @@
   mutable GURL paste_and_go_url_;
   mutable PageTransition::Type paste_and_go_transition_;
   mutable GURL paste_and_go_alternate_nav_url_;
 
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(AutocompleteEditModel);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_AUTOCOMPLETE_EDIT_H_