AX checked state changes

content/browser/accessibility/browser_accessibility_win.cc

Index: content/browser/accessibility/browser_accessibility_win.cc
diff --git a/content/browser/accessibility/browser_accessibility_win.cc b/content/browser/accessibility/browser_accessibility_win.cc
index 5ccbc393f5fde58570264115342cbb620ce3c132..f6a707d3a82118471a2d6d5af48f278483ace289 100644
--- a/content/browser/accessibility/browser_accessibility_win.cc
+++ b/content/browser/accessibility/browser_accessibility_win.cc
@@ -5213,9 +5213,20 @@ void BrowserAccessibilityWin::InitRoleAndState() {
   int32_t ia2_state = IA2_STATE_OPAQUE;
 
   if (HasState(ui::AX_STATE_BUSY))
-    ia_state |= STATE_SYSTEM_BUSY;
-  if (HasState(ui::AX_STATE_CHECKED))
-    ia_state |= STATE_SYSTEM_CHECKED;
+    ia_state |= STATE_SYSTEM_BUSY;\
+
+  const int checked = GetIntAttribute(ui::AX_ATTR_INVALID_STATE);
+  switch (checked) {
+    case ui::AX_CHECKED_STATE_TRUE:
+      ia_state |= STATE_SYSTEM_CHECKED;
+      break;
+    case ui::AX_CHECKED_STATE_MIXED:
+      ia_state |=  (STATE_SYSTEM_MIXED | STATE_SYSTEM_CHECKED);
+      break;
+    default:
+      break;
+  }
+
   if (HasState(ui::AX_STATE_COLLAPSED))
     ia_state |= STATE_SYSTEM_COLLAPSED;
   if (HasState(ui::AX_STATE_EXPANDED))
@@ -5272,9 +5283,6 @@ void BrowserAccessibilityWin::InitRoleAndState() {
   if (HasState(ui::AX_STATE_EDITABLE))
     ia2_state |= IA2_STATE_EDITABLE;
 
-  if (GetBoolAttribute(ui::AX_ATTR_STATE_MIXED))
-    ia_state |= STATE_SYSTEM_MIXED;
-
   if (GetBoolAttribute(ui::AX_ATTR_CAN_SET_VALUE))
     ia2_state |= IA2_STATE_EDITABLE;