Remove gfx::DIAGONAL_STRIKE and supporting code.

ui/views/examples/textfield_example.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 "ui/views/examples/textfield_example.h"
 
 #include <stddef.h>
 
 #include "base/strings/utf_string_conversions.h"
 #include "ui/events/event.h"
@@ skipping 131 matching lines @@
 
       if (name_->text().length() >= 5) {
         size_t fifth = name_->text().length() / 5;
         const gfx::Range big_range(1 * fifth, 4 * fifth);
         name_->ApplyStyle(gfx::UNDERLINE, true, big_range);
         name_->ApplyColor(SK_ColorBLUE, big_range);
 
         const gfx::Range small_range(2 * fifth, 3 * fifth);
         name_->ApplyStyle(gfx::ITALIC, true, small_range);
         name_->ApplyStyle(gfx::UNDERLINE, false, small_range);
-        name_->ApplyStyle(gfx::DIAGONAL_STRIKE, true, small_range);
         name_->ApplyColor(SK_ColorRED, small_range);
       }
     }
   }
 }
 
 }  // namespace examples
 }  // namespace views