WebUI: Allow rejecting a promise that is returned from cr.sendWithPromise().

ui/webui/resources/webui_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/webui_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="grit/webui_resources_map.cc"
             type="resource_file_map_source" />
@@ skipping 242 matching lines @@
                  file="css/tree.css" type="chrome_html"
                  flattenhtml="true" />
       <structure name="IDR_WEBUI_CSS_WIDGETS"
                  file="css/widgets.css" type="chrome_html"
                  flattenhtml="true" />
 
       <structure name="IDR_WEBUI_HTML_ACTION_LINK"
                  file="html/action_link.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_ASSERT"
                  file="html/assert.html" type="chrome_html" />
+      <structure name="IDR_WEBUI_HTML_PROMISE_RESOLVER"
+                 file="html/promise_resolver.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_CR"
                  file="html/cr.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_CR_EVENT_TARGET"
                  file="html/cr/event_target.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_CR_UI"
                  file="html/cr/ui.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_CR_UI_ALERT_OVERLAY"
                  file="html/cr/ui/alert_overlay.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_CR_UI_COMMAND"
                  file="html/cr/ui/command.html" type="chrome_html" />
@@ skipping 32 matching lines @@
                  file="html/polymer_config.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_I18N_BEHAVIOR"
                  file="html/i18n_behavior.html" type="chrome_html" />
       <structure name="IDR_WEBUI_HTML_UTIL"
                  file="html/util.html" type="chrome_html" />
 
       <structure name="IDR_WEBUI_JS_ACTION_LINK"
                  file="js/action_link.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_ASSERT"
                  file="js/assert.js" type="chrome_html" />
+      <structure name="IDR_WEBUI_JS_PROMISE_RESOLVER"
+                 file="js/promise_resolver.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_CR"
                  file="js/cr.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_CR_EVENT_TARGET"
                  file="js/cr/event_target.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_CR_LINK_CONTROLLER"
                  file="js/cr/link_controller.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_CR_UI"
                  file="js/cr/ui.js" type="chrome_html" />
       <structure name="IDR_WEBUI_JS_CR_UI_ALERT_OVERLAY"
                  file="js/cr/ui/alert_overlay.js" type="chrome_html" />
@@ skipping 122 matching lines @@
                    file="js/chromeos/ui_account_tweaks.js"
                    type="chrome_html" />
       </if>
       <part file="cr_elements_resources.grdp" />
       <if expr="not is_android">
         <part file="polymer_resources.grdp" />
       </if>
     </structures>
   </release>
 </grit>