Exposed the invalid state of form controls to the accessibility APIs.

content/renderer/accessibility/blink_ax_tree_source.cc

Index: content/renderer/accessibility/blink_ax_tree_source.cc
diff --git a/content/renderer/accessibility/blink_ax_tree_source.cc b/content/renderer/accessibility/blink_ax_tree_source.cc
index 7866d9a29d1214e8e478224c38006acf2850096f..3bef564ad72f5e146901a27b6774c95ae179478f 100644
--- a/content/renderer/accessibility/blink_ax_tree_source.cc
+++ b/content/renderer/accessibility/blink_ax_tree_source.cc
@@ -234,6 +234,13 @@ void BlinkAXTreeSource::SerializeNode(blink::WebAXObject src,
     dst->AddIntAttribute(ui::AX_ATTR_COLOR_VALUE_BLUE, b);
   }
 
+  if (src.invalidState())
+      dst->AddIntAttribute(ui::AX_ATTR_INVALID_STATE,

[dmazzoni, 2014/12/19 17:30:34]

nit: indent 2 less, and use braces because this spans 2 lines

+                           AXInvalidStateFromBlink(src.invalidState()));
+  if (src.invalidState() == blink::WebAXInvalidStateOther)
+      dst->AddStringAttribute(ui::AX_ATTR_ARIA_INVALID_VALUE,

[dmazzoni, 2014/12/19 17:30:34]

same

+                              UTF16ToUTF8(src.ariaInvalidValue()));
+
   if (dst->role == ui::AX_ROLE_INLINE_TEXT_BOX) {
     dst->AddIntAttribute(ui::AX_ATTR_TEXT_DIRECTION,
                          AXTextDirectionFromBlink(src.textDirection()));
@@ -265,6 +272,7 @@ void BlinkAXTreeSource::SerializeNode(blink::WebAXObject src,
     dst->AddStringAttribute(ui::AX_ATTR_ACCESS_KEY,
     UTF16ToUTF8(src.accessKey()));
   }
+
   if (src.actionVerb().length())
     dst->AddStringAttribute(ui::AX_ATTR_ACTION, UTF16ToUTF8(src.actionVerb()));
   if (src.ariaAutoComplete().length())