SuperSize: Fix .data.rel.ro labeled as "vtable"

Change-Id: I8505a8a5509edaf08f479855d4a0b7ab14cf9567
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1844447
Commit-Queue: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#703308}

tools/binary_size/libsupersize/static/viewer.html

@@ -283,7 +283,7 @@ if ('serviceWorker' in navigator) {
         <path d="M9.4,16.6L4.8,12l4.6-4.6L8,6l-6,6l6,6L9.4,16.6z M14.6,16.6l4.6-4.6l-4.6-4.6L16,6l6,6l-6,6L14.6,16.6z" />
       </svg>
       <svg class="icon relroicon" height="24" width="24" fill="#fbbc04">
-        <title>Vtable entry</title>
+        <title>.data.rel.ro (read-only after relocations)</title>
         <path d="M20,3H5C3.9,3,3,3.9,3,5v14c0,1.1,0.9,2,2,2h15c1.1,0,2-0.9,2-2V5C22,3.9,21.1,3,20,3z M20,5v3H5V5H20z M15,19h-5v-9h5V19z
                  M5,10h3v9H5V10z M17,19v-9h3v9H17z" />
       </svg>
@@ -409,7 +409,7 @@ if ('serviceWorker' in navigator) {
                              M5,10h3v9H5V10z M17,19v-9h3v9H17z" />
                   </svg>
                 </td>
-                <th scope="row">Vtable entry</th>
+                <th scope="row">.data.rel.ro (read-only after relocations)</th>
                 <td class="count"></td>
                 <td class="size"></td>
                 <td class="percent"></td>