MD Settings: Improve People Page Manage Profile button accessibility

chrome/browser/resources/settings/people_page/people_page.html

Index: chrome/browser/resources/settings/people_page/people_page.html
diff --git a/chrome/browser/resources/settings/people_page/people_page.html b/chrome/browser/resources/settings/people_page/people_page.html
index a4bc33b71b800cc8edfd5615eef59191070f0af4..9ffd5fda656d214ed70992fbe70a7f0927b95588 100644
--- a/chrome/browser/resources/settings/people_page/people_page.html
+++ b/chrome/browser/resources/settings/people_page/people_page.html
@@ -123,14 +123,20 @@
 </if>
               <div class="flex text-elide">
                 <span id="profile-name">[[profileName_]]</span>
-                <div class="secondary" hidden="[[!syncStatus.signedIn]]"
-                    id="profileNameSecondary">
+                <div class="secondary" hidden="[[!syncStatus.signedIn]]">
                   [[syncStatus.signedInUsername]]
                 </div>
               </div>
+<if expr="not chromeos">
               <button class="subpage-arrow" is="paper-icon-button-light"
-                  aria-labelledby="profile-name"
-                  aria-describedby="profileNameSecondary"></button>
+                  aria-label="$i18n{editPerson}"
+                  aria-describedby="profile-name"></button>
+</if>
+<if expr="chromeos">
+              <button class="subpage-arrow" is="paper-icon-button-light"
+                  aria-label="$i18n{changePictureTitle}"
+                  aria-describedby="profile-name"></button>
+</if>
             </div>
 <if expr="not chromeos">
             <template is="dom-if" if="[[showSignin_(syncStatus)]]">