Bug 1551834 - Move legacy autocomplete attributes from shared browser.xul markup to the legacy-urlbar binding. r=mak

Differential Revision: https://phabricator.services.mozilla.com/D31227

--HG--
extra : moz-landing-system : lando

browser/base/content/browser.xul

@@ -846,14 +846,6 @@
                      placeholder="&urlbar.placeholder2;"
                      defaultPlaceholder="&urlbar.placeholder2;"
                      focused="true"
-                     type="autocomplete"
-                     autocompletesearch="unifiedcomplete"
-                     autocompletesearchparam="enable-actions"
-                     autocompletepopup="PopupAutoCompleteRichResult"
-                     completeselectedindex="true"
-                     tabscrolling="true"
-                     ontextentered="this.handleCommand(param);"
-                     ontextreverted="return this.handleRevert();"
                      pageproxystate="invalid">
               <!-- Use onclick instead of normal popup= syntax since the popup
                    code fires onmousedown, and hence eats our favicon drag events. -->

browser/base/content/urlbarBindings.xml

@@ -57,7 +57,15 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
   </binding>
 
   <binding id="legacy-urlbar" extends="chrome://global/content/bindings/autocomplete.xml#autocomplete">
-    <content newlines="stripsurroundingwhitespace">
+    <content newlines="stripsurroundingwhitespace"
+             type="autocomplete"
+             autocompletesearch="unifiedcomplete"
+             autocompletesearchparam="enable-actions"
+             autocompletepopup="PopupAutoCompleteRichResult"
+             completeselectedindex="true"
+             tabscrolling="true"
+             ontextentered="this.handleCommand(param);"
+             ontextreverted="return this.handleRevert();">
       <children includes="box"/>
       <xul:moz-input-box anonid="moz-input-box"
                          tooltip="aHTMLTooltip"