Add content description to zenmode

Test: manual
Change-Id: Ic478e8a6fcd2088d198b2cee2e70ab8376b4709d
Fixes: 79686343
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
index f066e34..fd26885 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
@@ -196,6 +196,7 @@
 
             final SliceItem titleItem = rc.getTitleItem();
             button.setText(titleItem == null ? null : titleItem.getText());
+            button.setContentDescription(rc.getContentDescription());
 
             Drawable iconDrawable = null;
             SliceItem icon = SliceQuery.find(item.getSlice(),
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
index c5e66f9..8b9bf77 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
@@ -151,6 +151,8 @@
             return;
         }
         RowBuilder dndBuilder = new RowBuilder(builder, mDndUri)
+                .setContentDescription(getContext().getResources()
+                        .getString(R.string.accessibility_quick_settings_dnd))
                 .addEndItem(Icon.createWithResource(getContext(), R.drawable.stat_sys_dnd));
         builder.addRow(dndBuilder);
     }