Remove pp_ifdef from resource files in chrome/browser and chrome/renderer.

chrome/browser/resources/print_preview/print_preview.css

 /* 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. */
 
 html {
   height: 100%;
   overflow: hidden;
 }
 
 body {
@@ skipping 250 matching lines @@
 span.jumping-dots > span:nth-child(2) {
   -webkit-animation-delay: 100ms;
 }
 
 span.jumping-dots > span:nth-child(3) {
   -webkit-animation-delay: 300ms;
 }
 
 /* TODO(estade): unfork this code. */
 #print-header .button-strip {
-<if expr="not pp_ifdef('chromeos') and not is_win">
+<if expr="not chromeos and not is_win">
   -webkit-box-direction: reverse;
 </if>
   -webkit-box-orient: horizontal;
   -webkit-box-pack: end;
   display: -webkit-box;
 }
 
 #print-header .button-strip button {
   -webkit-margin-start: 9px;
   display: block;
@@ skipping 18 matching lines @@
 :enabled:focus:-webkit-any(input[type='checkbox'],
                            input[type='radio'],
                            button):not(.link-button) {
   /* Cancel border-color for :focus specified in widgets.css. */
   border-color: rgba(0,0,0,0.25);
 }
 
 html:not(.focus-outline-visible) button:focus.link-button {
   outline: none;
 }