Adds API for testing aria-controls/flowto/owns properties.

content/shell/renderer/test_runner/web_ax_object_proxy.cc

Index: content/shell/renderer/test_runner/web_ax_object_proxy.cc
diff --git a/content/shell/renderer/test_runner/web_ax_object_proxy.cc b/content/shell/renderer/test_runner/web_ax_object_proxy.cc
index ec01d82bb5fef41a2482cce82c1c62f95b008115..de77571dd185d24cadc3bad5b95222d6be3d122b 100644
--- a/content/shell/renderer/test_runner/web_ax_object_proxy.cc
+++ b/content/shell/renderer/test_runner/web_ax_object_proxy.cc
@@ -513,6 +513,12 @@ WebAXObjectProxy::GetObjectTemplateBuilder(v8::Isolate* isolate) {
       .SetMethod("allAttributes", &WebAXObjectProxy::AllAttributes)
       .SetMethod("attributesOfChildren",
                  &WebAXObjectProxy::AttributesOfChildren)
+      .SetMethod("ariaControlsElementAtIndex",
+                 &WebAXObjectProxy::AriaControlsElementAtIndex)
+      .SetMethod("ariaFlowToElementAtIndex",
+                 &WebAXObjectProxy::AriaFlowToElementAtIndex)
+      .SetMethod("ariaOwnsElementAtIndex",
+                 &WebAXObjectProxy::AriaOwnsElementAtIndex)
       .SetMethod("lineForIndex", &WebAXObjectProxy::LineForIndex)
       .SetMethod("boundsForRange", &WebAXObjectProxy::BoundsForRange)
       .SetMethod("childAtIndex", &WebAXObjectProxy::ChildAtIndex)
@@ -814,6 +820,44 @@ bool WebAXObjectProxy::IsButtonStateMixed() {
   return accessibility_object_.isButtonStateMixed();
 }
 
+v8::Handle<v8::Object> WebAXObjectProxy::AriaControlsElementAtIndex(
+                                                                unsigned index)
+{
+  accessibility_object_.updateLayoutAndCheckValidity();
+  blink::WebVector<blink::WebAXObject> elements;
+  accessibility_object_.ariaControls(elements);
+  size_t elementCount = elements.size();
+  if (index >= elementCount)
+        return v8::Handle<v8::Object>();

[dmazzoni, 2015/01/05 09:12:54]

nit: wrong indentation here

+
+  return factory_->GetOrCreate(elements[index]);
+}
+
+v8::Handle<v8::Object> WebAXObjectProxy::AriaFlowToElementAtIndex(
+                                                                unsigned index)
+{
+    accessibility_object_.updateLayoutAndCheckValidity();

[dmazzoni, 2015/01/05 09:12:53]

nit: wrong indentation, should be 2 spaces in

+    blink::WebVector<blink::WebAXObject> elements;
+    accessibility_object_.ariaFlowTo(elements);
+    size_t elementCount = elements.size();
+    if (index >= elementCount)
+        return v8::Handle<v8::Object>();

[dmazzoni, 2015/01/05 09:12:53]

same - should be 2

+
+    return factory_->GetOrCreate(elements[index]);
+}
+
+v8::Handle<v8::Object> WebAXObjectProxy::AriaOwnsElementAtIndex(unsigned index)
+{
+    accessibility_object_.updateLayoutAndCheckValidity();
+    blink::WebVector<blink::WebAXObject> elements;
+    accessibility_object_.ariaOwns(elements);
+    size_t elementCount = elements.size();
+    if (index >= elementCount)
+        return v8::Handle<v8::Object>();
+
+    return factory_->GetOrCreate(elements[index]);
+}
+
 std::string WebAXObjectProxy::AllAttributes() {
   accessibility_object_.updateLayoutAndCheckValidity();
   return GetAttributes(accessibility_object_);