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

chrome/browser/resources/options/language_options.html

 <div id="languagePage" class="page" hidden>
   <div class="close-button"></div>
   <h1 i18n-content="languagePage"></h1>
   <div class="content-area">
     <div id="notification">
       <span>&nbsp;</span>
       <span class="link"><span class="link-color"></span></span>
     </div>
     <div class="language-options-header">
       <span i18n-content="addLanguageInstructions"></span>
-<if expr="pp_ifdef('chromeos')">
+<if expr="chromeos">
       <span i18n-content="inputMethodInstructions"></span>
 </if>
       <a target="_blank" i18n-content="learnMore"
           i18n-values="href:languagesLearnMoreURL"></a>
     </div>
     <div class="language-options">
       <div id="language-options-languages">
         <h3 i18n-content="languages"></h3>
         <list id="language-options-list"></list>
         <div class="language-options-lower-left">
           <button id="language-options-add-button"
             i18n-content="addButton">
           </button>
         </div>
         <div id="language-options-list-dropmarker"></div>
       </div>
       <div id="language-options-details">
         <h3 id="language-options-language-name"></h3>
-<if expr="os == 'win32' or pp_ifdef('chromeos')">
+<if expr="os == 'win32' or chromeos">
         <div class="language-options-contents">
           <button id="language-options-ui-language-button"
               i18n-content="displayInThisLanguage">
           </button>
           <span class="controlled-setting-indicator"></span>
           <span id="language-options-ui-language-message" hidden></span>
         </div>
 </if>
 <!-- Chrome uses the native OS spellchecker in OS X, so don't display the
      dictionary pane. -->
@@ skipping 14 matching lines @@
           <div id="language-options-dictionary-download-fail-help-message"
               i18n-content="downloadFailHelp" hidden>
           </div>
           <button id="dictionary-download-retry-button"
               i18n-content="retryButton">
           </button>
         </div>
         <div id="language-options-ui-notification-bar"
             class="language-options-notification" hidden>
           <div i18n-content="restartRequired"></div>
-<if expr="pp_ifdef('chromeos')">
+<if expr="chromeos">
           <button id="language-options-ui-restart-button"
               i18n-content="restartButton">
           </button>
 </if>
         </div>
 </if>
         <div id="language-options-offer-to-translate"
             class="language-options-contents" hidden>
           <div class="checkbox">
             <label>
               <input type="checkbox" id="offer-to-translate-in-this-language">
               <span class="offer-to-translate-label"
                   i18n-content="offerToTranslateInThisLanguage"></span>
             </label>
           </div>
           <span id="cannot-translate-in-this-language"
                i18n-content="cannotTranslateInThisLanguage" hidden></span>
         </div>
-<if expr="pp_ifdef('chromeos')">
+<if expr="chromeos">
         <h3 i18n-content="inputMethod"></h3>
         <div id="language-options-input-method-template" class="input-method"
             hidden>
           <div class="checkbox">
             <label>
               <input type="checkbox">
               <span class="input-method-label"></span>
             </label>
           </div>
         </div>
         <div id="language-options-input-method-list"
              class="language-options-contents">
           <span id="language-options-input-method-none"
               i18n-content="noInputMethods" hidden>
           </span>
         </div>
 </if>
       </div>
     </div>
     <div class="language-options-footer">
-<if expr="pp_ifdef('chromeos')">
+<if expr="chromeos">
       <div i18n-content="switchInputMethodsHint"></div>
       <div i18n-content="selectPreviousInputMethodHint"></div>
       <button id="edit-dictionary-button"
           class="link-button standalone-link-button"
           i18n-content="languageDictionaryOverlayTitle"></button>
 </if>
-<if expr="not pp_ifdef('chromeos') and not is_macosx">
+<if expr="not chromeos and not is_macosx">
       <div id="spell-check-option" class="checkbox">
         <label>
           <input id="enable-spell-check" pref="browser.enable_spellchecking"
               metric="Options_SpellCheck" type="checkbox">
           <span i18n-content="enableSpellCheck"></span>
         </label>
         <button id="edit-dictionary-button" class="link-button"
             i18n-content="languageDictionaryOverlayTitle" hidden></button>
       </div>
       <div id="auto-spell-correction-option" class="checkbox" hidden>
         <label>
           <input id="enable-auto-spell-correction"
               pref="browser.enable_autospellcorrect"
               metric="Options_AutoSpellCorrection" type="checkbox">
           <span i18n-content="enableAutoSpellCorrection"></span>
         </label>
       </div>
 </if>
     </div>
   </div>
   <div class="action-area">
     <div class="button-strip">
       <button id="language-confirm" class="default-button" i18n-content="done">
       </button>
     </div>
   </div>
 </div>