F6 should do tabbing between frames. The current behaviour differs from IE/Sa...

chrome/browser/autocomplete/autocomplete_edit.cc

 // Copyright (c) 2006-2008 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.
 
 #include "chrome/browser/autocomplete/autocomplete_edit.h"
 
 #include <locale>
 
 #include "base/base_drag_source.h"
 #include "base/clipboard.h"
@@ skipping 927 matching lines @@
   return IsSelectAllForRange(selection);
 }
 
 void AutocompleteEditView::SelectAll(bool reversed) {
   if (reversed)
     SetSelection(GetTextLength(), 0);
   else
     SetSelection(0, GetTextLength());
 }
 
+void AutocompleteEditView::DeSelectAll() {
+  SetSelection(0, 0);
+}
+
 void AutocompleteEditView::RevertAll() {
   ScopedFreeze freeze(this, GetTextObjectModel());
   ClosePopup();
   model_->Revert();
   saved_selection_for_focus_change_.cpMin = -1;
   TextChanged();
 }
 
 void AutocompleteEditView::UpdatePopup() {
   ScopedFreeze freeze(this, GetTextObjectModel());
@@ skipping 1497 matching lines @@
 }
 
 void AutocompleteEditView::RepaintDropHighlight(int position) {
   if ((position != -1) && (position <= GetTextLength())) {
     const POINT min_loc(PosFromChar(position));
     const RECT highlight_bounds = {min_loc.x - 1, font_y_adjustment_,
         min_loc.x + 2, font_ascent_ + font_descent_ + font_y_adjustment_};
     InvalidateRect(&highlight_bounds, false);
   }
 }