AX checked state changes

chrome/renderer/extensions/automation_internal_custom_bindings.cc

Index: chrome/renderer/extensions/automation_internal_custom_bindings.cc
diff --git a/chrome/renderer/extensions/automation_internal_custom_bindings.cc b/chrome/renderer/extensions/automation_internal_custom_bindings.cc
index e56944b1f4928389aae3fb68e502e1dc620804e8..d975b88d74422fb7f350cf38a74d47881b7e1f01 100644
--- a/chrome/renderer/extensions/automation_internal_custom_bindings.cc
+++ b/chrome/renderer/extensions/automation_internal_custom_bindings.cc
@@ -711,6 +711,16 @@ AutomationInternalCustomBindings::AutomationInternalCustomBindings(
         std::string name_from_str = ui::ToString(name_from);
         result.Set(v8::String::NewFromUtf8(isolate, name_from_str.c_str()));
       });
+  RouteNodeIDFunction(
+      "GetChecked", [](v8::Isolate* isolate, v8::ReturnValue<v8::Value> result,
+                       TreeCache* cache, ui::AXNode* node) {
+        const auto checked_state = static_cast<ui::AXCheckedState>(
+            node->data().GetIntAttribute(ui::AX_ATTR_CHECKED_STATE));
+        const char* checked_str = GetCheckedStateName(checked_state);
+        if (checked_state) {
+          result.Set(v8::String::NewFromUtf8(isolate, checked_str));
+        }
+      });
 }
 
 AutomationInternalCustomBindings::~AutomationInternalCustomBindings() {}
@@ -1001,6 +1011,21 @@ void AutomationInternalCustomBindings::GetState(
   args.GetReturnValue().Set(state);
 }
 
+const char* AutomationInternalCustomBindings::GetCheckedStateName(

[David Tseng, 2017/03/13 18:10:54]

ax_enums.h should generate this for you (ToString(enum_value))

+    const ui::AXCheckedState checked_state) {
+  switch (checked_state) {
+    case ui::AX_CHECKED_STATE_NONE:
+      return nullptr;
+    case ui::AX_CHECKED_STATE_TRUE:
+      return "true";
+    case ui::AX_CHECKED_STATE_MIXED:
+      return "mixed";
+    default:
+      break;
+  }
+  return "false";
+}
+
 void AutomationInternalCustomBindings::UpdateOverallTreeChangeObserverFilter() {
   tree_change_observer_overall_filter_ = 0;
   for (const auto& observer : tree_change_observers_)