bug 446535 - Main->Downloads->"Save to" file field misses accessible label, r=mano

browser/components/preferences/main.xul

@@ -163,6 +163,7 @@
           <filefield id="downloadFolder" flex="1"
                      preference="browser.download.folderList"
                      preference-editable="true"
+                     aria-labelledby="saveTo"
                      onsyncfrompreference="return gMainPane.displayDownloadDirPref();"
                      onsynctopreference="return gMainPane.getFolderListPref()"/>
           <button id="chooseFolder" oncommand="gMainPane.chooseFolder();"

toolkit/mozapps/preferences/preferences.xml

@@ -10,7 +10,7 @@
       <xul:stringbundle anonid="bundle" src="chrome://mozapps/locale/preferences/preferences.properties"/>
       <xul:hbox class="fileFieldContentBox" align="center" flex="1" xbl:inherits="disabled">
         <xul:image class="fileFieldIcon" xbl:inherits="src=image,disabled"/>
-        <xul:textbox class="fileFieldLabel" xbl:inherits="value=label,disabled,accesskey,tabindex" flex="1" readonly="true"/>
+        <xul:textbox class="fileFieldLabel" xbl:inherits="value=label,disabled,accesskey,tabindex,aria-labelledby" flex="1" readonly="true"/>
       </xul:hbox>
     </content>
     <implementation implements="nsIDOMXULLabeledControlElement">