Remove the need for <polymer-selector> in the PDF plugin.

chrome/browser/resources/component_extension_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This comment is only here because changes to resources are not picked up
      without changes to the corresponding grd file.  -->
 <grit latest_public_release="0" current_release="1">
   <outputs>
     <output filename="grit/component_extension_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="grit/component_extension_resources_map.cc" type="resource_file_map_source" />
     <output filename="grit/component_extension_resources_map.h" type="resource_map_header" />
@@ skipping 183 matching lines @@
       </if>
       <if expr="enable_plugins">
         <include name="IDR_PDF_INDEX_HTML" file="pdf/index.html" allowexternalscript="true" type="BINDATA" flattenhtml="true" />
         <include name="IDR_PDF_INDEX_CSS" file="pdf/index.css" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_PDF_JS" file="pdf/pdf.js" type="BINDATA" flattenhtml="true" />
         <include name="IDR_PDF_VIEWPORT_JS" file="pdf/viewport.js" type="BINDATA" />
         <include name="IDR_PDF_BACKGROUND_JS" file="pdf/background.js" type="BINDATA" />
         <include name="IDR_PDF_SCRIPTING_API_JS" file="pdf/pdf_scripting_api.js" type="BINDATA" />
 
         <!-- Polymer libs. -->
-        <include name="IDR_PDF_POLYMER_HTML" file="../../../third_party/polymer/vulcanized/polymer-elements.html" type="BINDATA" />
-        <include name="IDR_PDF_POLYMER_JS" file="../../../third_party/polymer/vulcanized/polymer-elements.js" type="BINDATA" />
         <include name="IDR_PDF_PLATFORM_JS" file="../../../third_party/polymer/platform/platform.js" type="BINDATA" />
+        <include name="IDR_PDF_POLYMER_JS" file="../../../third_party/polymer/polymer/polymer.js" type="BINDATA" />
 
         <!-- Polymer elements. -->
         <include name="IDR_PDF_INCLUDES_JS" file="pdf/includes.js" type="BINDATA" flattenhtml="true" />
         <include name="IDR_PDF_BUTTON_HTML" file="pdf/html_office/elements/viewer-button/viewer-button.html" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_JS" file="pdf/html_office/elements/viewer-button/viewer-button.js" type="BINDATA" />
         <include name="IDR_PDF_ERROR_SCREEN_HTML" file="pdf/html_office/elements/viewer-error-screen/viewer-error-screen.html" type="BINDATA" />
         <include name="IDR_PDF_ERROR_SCREEN_JS" file="pdf/html_office/elements/viewer-error-screen/viewer-error-screen.js" type="BINDATA" />
         <include name="IDR_PDF_PAGE_INDICATOR_HTML" file="pdf/html_office/elements/viewer-page-indicator/viewer-page-indicator.html" type="BINDATA" />
         <include name="IDR_PDF_PAGE_INDICATOR_JS" file="pdf/html_office/elements/viewer-page-indicator/viewer-page-indicator.js" type="BINDATA" />
         <include name="IDR_PDF_PASSWORD_SCREEN_HTML" file="pdf/html_office/elements/viewer-password-screen/viewer-password-screen.html" type="BINDATA" />
@@ skipping 13 matching lines @@
         <include name="IDR_PDF_BUTTON_HIGH_1" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_fit_page.png" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_HIGH_2" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_fit_width.png" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_HIGH_3" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_zoom_out.png" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_HIGH_4" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_zoom_in.png" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_HIGH_5" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_save.png" type="BINDATA" />
         <include name="IDR_PDF_BUTTON_HIGH_6" file="pdf/html_office/elements/viewer-button/img/hiDPI/button_print.png" type="BINDATA" />
       </if>
     </includes>
   </release>
 </grit>