Untabify slots-fallback-in-document.html. (#5749)

Tabs sneaked in in the last commit.

shadow-dom/slots-fallback-in-document.html

@@ -23,7 +23,7 @@
 test(() => {
   assert_array_equals(n1.innerSlot.assignedNodes(), [n1.slot]);
   assert_array_equals(n1.innerSlot.assignedNodes({ flatten: true }),
-		      [n1.fallback]);
+                      [n1.fallback]);
 }, 'Slot fallback content in document tree should be counted in flattened ' +
    'assigned nodes.');
 </script>
@@ -32,10 +32,10 @@
   <div id="host">
     <template data-mode="open">
       <div id="innerHost">
-	<template data-mode="open">
-	  <slot id="innerSlot"></slot>
-	</template>
-	<slot id="slot"><div id="fallback">This is fallback content</div></slot>
+        <template data-mode="open">
+          <slot id="innerSlot"></slot>
+        </template>
+        <slot id="slot"><div id="fallback">This is fallback content</div></slot>
       </div>
     </template>
   </div>
@@ -50,7 +50,7 @@
 test(() => {
   assert_array_equals(n2.innerSlot.assignedNodes(), [n2.slot]);
   assert_array_equals(n2.innerSlot.assignedNodes({ flatten: true }),
-		      [n2.fallback]);
+                      [n2.fallback]);
 }, 'Slot fallback content in shadow tree should be counted in flattened ' +
    'assigned nodes.');
 </script>