AX checked state changes

ui/accessibility/platform/ax_platform_node_auralinux.cc

Index: ui/accessibility/platform/ax_platform_node_auralinux.cc
diff --git a/ui/accessibility/platform/ax_platform_node_auralinux.cc b/ui/accessibility/platform/ax_platform_node_auralinux.cc
index f65267a9227fa968871175836f90f8f89f86bea9..6d30f501265854207d2d87a8b4192d12857193cf 100644
--- a/ui/accessibility/platform/ax_platform_node_auralinux.cc
+++ b/ui/accessibility/platform/ax_platform_node_auralinux.cc
@@ -455,10 +455,9 @@ AtkRole AXPlatformNodeAuraLinux::GetAtkRole() {
 }
 
 void AXPlatformNodeAuraLinux::GetAtkState(AtkStateSet* atk_state_set) {
-  uint32_t state = GetData().state;
+  const AXNodeData& data = GetData();
+  uint32_t state = data.state;
 
-  if (state & (1 << ui::AX_STATE_CHECKED))
-    atk_state_set_add_state(atk_state_set, ATK_STATE_CHECKED);
   if (state & (1 << ui::AX_STATE_DEFAULT))
     atk_state_set_add_state(atk_state_set, ATK_STATE_DEFAULT);
   if (state & (1 << ui::AX_STATE_EDITABLE))
@@ -476,6 +475,19 @@ void AXPlatformNodeAuraLinux::GetAtkState(AtkStateSet* atk_state_set) {
   if (state & (1 << ui::AX_STATE_SELECTED))
     atk_state_set_add_state(atk_state_set, ATK_STATE_SELECTED);
 
+  // Checked state
+  const int checked = GetIntAttribute(ui::AX_ATTR_INVALID_STATE);
+  switch (checked) {
+    case ui::AX_CHECKED_STATE_MIXED:
+      atk_state_set_add_state(atk_state_set, ATK_STATE_INDETERMINATE);
+      // Fall through
+    case ui::AX_CHECKED_STATE_TRUE:
+      atk_state_set_add_state(atk_state_set, ATK_STATE_CHECKED);
+      break;
+    default:
+      break;
+  }
+
   if (delegate_->GetFocus() == GetNativeViewAccessible())
     atk_state_set_add_state(atk_state_set, ATK_STATE_FOCUSED);
 }