Remove unused color from NativeTheme.

ui/native_theme/native_theme.h

 // 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.
 
 #ifndef UI_NATIVE_THEME_NATIVE_THEME_H_
 #define UI_NATIVE_THEME_NATIVE_THEME_H_
 
 #include "base/observer_list.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 304 matching lines @@
     kColorId_ResultsTableSelectedText,
     kColorId_ResultsTableNormalDimmedText,
     kColorId_ResultsTableHoveredDimmedText,
     kColorId_ResultsTableSelectedDimmedText,
     kColorId_ResultsTableNormalHeadline,
     kColorId_ResultsTableHoveredHeadline,
     kColorId_ResultsTableSelectedHeadline,
     kColorId_ResultsTableNormalUrl,
     kColorId_ResultsTableHoveredUrl,
     kColorId_ResultsTableSelectedUrl,
-    kColorId_ResultsTableNormalDivider,
-    kColorId_ResultsTableHoveredDivider,
-    kColorId_ResultsTableSelectedDivider,
     // Positive text refers to good (often rendered in green) text, such as the
     // stock value went up.
     kColorId_ResultsTablePositiveText,
     kColorId_ResultsTablePositiveHoveredText,
     kColorId_ResultsTablePositiveSelectedText,
     // Negative text refers to something alarming (often rendered in red), such
     // as the stock value went down.
     kColorId_ResultsTableNegativeText,
     kColorId_ResultsTableNegativeHoveredText,
     kColorId_ResultsTableNegativeSelectedText,
@@ skipping 34 matching lines @@
  private:
   // Observers to notify when the native theme changes.
   base::ObserverList<NativeThemeObserver> native_theme_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeTheme);
 };
 
 }  // namespace ui
 
 #endif  // UI_NATIVE_THEME_NATIVE_THEME_H_