Bug 1621287 - Use on the <hbox> statusbar role="status" to make it accessible. r=mkmelin

calendar/base/content/dialogs/calendar-event-dialog.xhtml

@@ -583,7 +583,7 @@
 
   <!-- the iframe is inserted here dynamically in the "load" handler function -->
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <hbox id="status-privacy"
           class="statusbarpanel"
           align="center"

chat/content/browserRequest.xhtml

@@ -32,7 +32,7 @@
     </vbox>
   </hbox>
   <browser type="content" src="about:blank" id="requestFrame" flex="1"/>
-  <hbox class="statusbar">
+  <hbox class="statusbar" role="status">
     <label id="security-display" class="statusbarpanel" crop="end" flex="1"/>
     <label id="security-status" class="statusbarpanel" crop="end" collapsed="true"/>
     <hbox id="statusbar-status" class="statusbarpanel statusbarpanel-progress" collapsed="true">

mail/base/content/ABSearchDialog.xhtml

@@ -179,7 +179,7 @@
       </hbox>
     </vbox>
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <label id="statusText" class="statusbarpanel" crop="end" flex="1"/>
     <hbox id="statusbar-progresspanel" class="statusbarpanel statusbarpanel-progress">
       <html:progress class="progressmeter-statusbar" id="statusbar-icon" value="0" max="100"/>

mail/base/content/FilterListDialog.xhtml

@@ -155,7 +155,7 @@
 
   <separator class="thin"/>
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <label id="statusText" class="statusbarpanel" flex="1" crop="end"/>
     <hbox id="statusbar-progresspanel" class="statusbarpanel statusbarpanel-progress" collapsed="true">
       <html:progress class="progressmeter-statusbar" id="statusbar-icon" value="0" max="100"/>

mail/base/content/SearchDialog.xhtml

@@ -142,7 +142,7 @@
     </hbox>
   </vbox>
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <label id="statusText" class="statusbarpanel" crop="end" flex="1"/>
     <hbox id="statusbar-progresspanel" class="statusbarpanel statusbarpanel-progress" collapsed="true">
       <html:progress class="progressmeter-statusbar" id="statusbar-icon" value="0" max="100"/>

mail/base/content/messageWindow.xhtml

@@ -276,7 +276,7 @@
             hidden="true"/>
   </panel>
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
 #include mainStatusbar.inc.xhtml
   </hbox>
 </window>

mail/base/content/messenger.xhtml

@@ -921,7 +921,7 @@
       <!-- notificationbox will be added here lazily. -->
   </hbox>
   <statuspanel id="statusbar-display"/>
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
 #include mainStatusbar.inc.xhtml
     <hbox id="calendar-invitations-panel"
           class="statusbarpanel"

mail/components/addrbook/content/addressbook.xhtml

@@ -944,7 +944,7 @@
             hidden="true"/>
   </panel>
 
-  <statusbar id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <label id="statusText" class="statusbarpanel" flex="1" value="&statusText.label;" crop="end"/>
-  </statusbar>
+  </hbox>
 </window>

mail/components/compose/content/messengercompose.xhtml

@@ -2509,7 +2509,7 @@
     <!-- notificationbox will be added here lazily. -->
   </hbox>
 
-  <hbox id="status-bar" class="statusbar chromeclass-status">
+  <hbox id="status-bar" class="statusbar chromeclass-status" role="status">
     <label id="statusText" class="statusbarpanel" flex="1" crop="end"/>
     <hbox id="statusbar-progresspanel"
           class="statusbarpanel statusbarpanel-progress"