Don't call AcceptCurrentInstantPreview() when the user hits Tab.

chrome/browser/ui/views/location_bar/location_bar_view.cc

 // Copyright (c) 2012 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/ui/views/location_bar/location_bar_view.h"
 
 #include <algorithm>
 #include <map>
 
 #include "base/command_line.h"
@@ skipping 1218 matching lines @@
 #if defined(OS_WIN)
   if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
     if (location_entry_->model()->popup_model()->IsOpen()) {
       // Return true so that the edit sees the tab and moves the selection.
       return true;
     }
     if (keyword_hint_view_->visible() && !event.IsShiftDown()) {
       // Return true so the edit gets the tab event and enters keyword mode.
       return true;
     }
-
-    // Tab while showing Instant commits instant immediately.
-    // Return true so that focus traversal isn't attempted. The edit ends
-    // up doing nothing in this case.
-    if (location_entry_->model()->AcceptCurrentInstantPreview())
-      return true;
   }
 
 #if defined(USE_AURA)
   NOTIMPLEMENTED();
   return false;
 #else
   OmniboxViewWin* omnibox_win = GetOmniboxViewWin(location_entry_.get());
   if (omnibox_win)
     return omnibox_win->SkipDefaultKeyEventProcessing(event);
 #endif  // USE_AURA
@@ skipping 218 matching lines @@
 int LocationBarView::GetInternalHeight(bool use_preferred_size) {
   int total_height =
       use_preferred_size ? GetPreferredSize().height() : height();
   return std::max(total_height - (kVerticalEdgeThickness * 2), 0);
 }
 
 bool LocationBarView::HasValidSuggestText() const {
   return suggested_text_view_ && !suggested_text_view_->size().IsEmpty() &&
       !suggested_text_view_->text().empty();
 }