Move ChromeRequirementsChecker to //extensions as a PreloadCheck

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="utf-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 4035 matching lines @@
       </message>
       <message name="IDS_EXTENSION_PUBLIC_KEY_FAILED_TO_EXPORT" desc="Warning displayed in pack dialog when exporting a public key failed.">
         Failed to export public key.
       </message>
       <message name="IDS_EXTENSION_CANT_DOWNGRADE_VERSION" desc="Error message when a user tries to install an extension with a lower version than a version that it already installed.">
         Attempted to downgrade extension.
       </message>
       <message name="IDS_APP_CANT_DOWNGRADE_VERSION" desc="Error message when a user tries to install an app with a lower version than a version that it already installed.">
         Attempted to downgrade app.
       </message>
-      <message name="IDS_EXTENSION_WEBGL_NOT_SUPPORTED" desc="Error message when an extension has a requirement for WebGL that the system does not support.">
-        WebGL is not supported.
-      </message>
-      <message name="IDS_EXTENSION_NPAPI_NOT_SUPPORTED" desc="Error message when an extension has a requirement for plugins that the system does not support.">
-        NPAPI plugins are not supported.
-      </message>
-      <if expr="not use_aura">
-        <message name="IDS_EXTENSION_WINDOW_SHAPE_NOT_SUPPORTED" desc="Error message when an extension has a requirement for shaped windows that the system does not support.">
-          Shaped windows are not supported.
-        </message>
-      </if>
       <if expr="chromeos">
         <message name="IDS_EXTENSION_CANT_INSTALL_IN_DEVICE_LOCAL_ACCOUNT" desc="Error message when a user tries to install or the administrator tries to force-install through policy an extension that is not allowed in a device-local account.">
           <ph name="EXTENSION_NAME">$1<ex>Google Talk</ex></ph> (extension ID "<ph name="EXTENSION_ID">$2<ex>nckgahadagoaajjgafhacjanaoiihapd</ex></ph>") is not allowed in this type of session.
         </message>
         <message name="IDS_EXTENSION_CANT_INSTALL_ON_SIGNIN_SCREEN" desc="Error message when the administrator tries to force-install through policy an extension that is not allowed on a login screen.">
           <ph name="EXTENSION_NAME">$1<ex>Google Talk</ex></ph> (extension ID "<ph name="EXTENSION_ID">$2<ex>abacabadabacabaeabacabadabacabaf</ex></ph>") is not allowed on a login screen.
         </message>
       </if>
       <message name="IDS_EXTENSION_MOVE_DIRECTORY_TO_PROFILE_FAILED" desc="">
         Could not move extension directory into profile.
@@ skipping 8311 matching lines @@
       Your downloads appear here
     </message>
 
     <!-- Automation info bar -->
     <message name="IDS_CONTROLLED_BY_AUTOMATION" desc="Message shown when the browser session is being controlled by an automated test.">
       Chrome is being controlled by automated test software.
     </message>
   </messages>
  </release>
 </grit>