Moved action verbs out of Blink.

ui/views/controls/button/custom_button.cc

Index: ui/views/controls/button/custom_button.cc
diff --git a/ui/views/controls/button/custom_button.cc b/ui/views/controls/button/custom_button.cc
index 4540c1bc52bac0191cad7ba1e2b5204ea6fc6ea5..f1083bec0da4c9dba2ae8082fde776a36f83f2a5 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -351,6 +351,9 @@ void CustomButton::GetAccessibleNodeData(ui::AXNodeData* node_data) {
       // No additional accessibility node_data set for this button node_data.
       break;
   }
+  if (state() != STATE_DISABLED)
+    node_data->AddIntAttribute(ui::AX_ATTR_ACTION,
+                               ui::AX_SUPPORTED_ACTION_PRESS);
 }
 
 void CustomButton::VisibilityChanged(View* starting_from, bool visible) {