cocoa browser: remove remaining non-MD code

chrome/browser/themes/theme_properties.h

 // Copyright (c) 2013 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_THEMES_THEME_PROPERTIES_H_
 #define CHROME_BROWSER_THEMES_THEME_PROPERTIES_H_
 
 #include <set>
 #include <string>
 
@@ skipping 128 matching lines @@
     COLOR_TOOLBAR_INACTIVE,
     COLOR_BACKGROUND_TAB_INACTIVE,
     COLOR_TOOLBAR_BEZEL,
     COLOR_TOOLBAR_STROKE,
     COLOR_TOOLBAR_STROKE_INACTIVE,
     COLOR_TOOLBAR_STROKE_THEME,
     COLOR_TOOLBAR_STROKE_THEME_INACTIVE,
     // The color of a toolbar button's border.
     COLOR_TOOLBAR_BUTTON_STROKE,
     COLOR_TOOLBAR_BUTTON_STROKE_INACTIVE,
-    GRADIENT_FRAME_INCOGNITO,
-    GRADIENT_FRAME_INCOGNITO_INACTIVE,
     GRADIENT_TOOLBAR,
     GRADIENT_TOOLBAR_INACTIVE,
     GRADIENT_TOOLBAR_BUTTON,
     GRADIENT_TOOLBAR_BUTTON_INACTIVE,
     GRADIENT_TOOLBAR_BUTTON_PRESSED,
     GRADIENT_TOOLBAR_BUTTON_PRESSED_INACTIVE,
 #endif  // OS_MACOSX
   };
 
   // Used by the browser theme pack to parse alignments from something like
@@ skipping 18 matching lines @@
 
   // Returns the default color for the given color |id| COLOR_* enum value.
   // Returns gfx::kPlaceholderColor if |id| is invalid.
   static SkColor GetDefaultColor(int id, bool otr);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(ThemeProperties);
 };
 
 #endif  // CHROME_BROWSER_THEMES_THEME_PROPERTIES_H_