Remove gfx::DIAGONAL_STRIKE and supporting code.

ui/views/examples/multiline_example.cc

 // Copyright 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.
 
 #include "ui/views/examples/multiline_example.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 79 matching lines @@
   void SetText(const base::string16& new_contents) {
     // Color and style the text inside |test_range| to test colors and styles.
     const size_t range_max = new_contents.length();
     gfx::Range color_range = ClampRange(gfx::Range(1, 21), range_max);
     gfx::Range bold_range = ClampRange(gfx::Range(4, 10), range_max);
     gfx::Range italic_range = ClampRange(gfx::Range(7, 13), range_max);
 
     render_text_->SetText(new_contents);
     render_text_->SetColor(SK_ColorBLACK);
     render_text_->ApplyColor(0xFFFF0000, color_range);
-    render_text_->SetStyle(gfx::DIAGONAL_STRIKE, false);
-    render_text_->ApplyStyle(gfx::DIAGONAL_STRIKE, true, color_range);
     render_text_->SetStyle(gfx::UNDERLINE, false);
     render_text_->ApplyStyle(gfx::UNDERLINE, true, color_range);
     render_text_->ApplyStyle(gfx::ITALIC, true, italic_range);
     render_text_->ApplyWeight(gfx::Font::Weight::BOLD, bold_range);
     InvalidateLayout();
   }
 
   void SetMaxLines(int max_lines) {
     render_text_->SetMaxLines(max_lines);
     render_text_->SetElideBehavior(max_lines ? gfx::ELIDE_TAIL : gfx::NO_ELIDE);
@@ skipping 89 matching lines @@
                                                : base::string16());
   } else if (sender == elision_checkbox_) {
     render_text_view_->SetMaxLines(elision_checkbox_->checked() ? 3 : 0);
   }
   container()->Layout();
   container()->SchedulePaint();
 }
 
 }  // namespace examples
 }  // namespace views