posinset and setsize for input type, radio, exposed in AX tree

third_party/WebKit/Source/core/html/HTMLInputElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLInputElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLInputElement.cpp b/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
index b516a88512ac7f75842d34bffa22692d14b3cb04..d2c2d94a4a5c98fe805d43c6d3b8cc762558e4ad 100644
--- a/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
@@ -104,6 +104,7 @@ HTMLInputElement::HTMLInputElement(Document& document, HTMLFormElement* form, bo
     , m_size(defaultSize)
     , m_maxLength(maximumLength)
     , m_minLength(0)
+    , m_positonInRadio(0)
     , m_maxResults(-1)
     , m_isChecked(false)
     , m_reflectsCheckedAttribute(true)
@@ -1759,6 +1760,31 @@ RadioButtonGroupScope* HTMLInputElement::radioButtonGroupScope() const
     return nullptr;
 }
 
+void HTMLInputElement::needUpdatePositionOfRadioGroup() const
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return;
+    scope->needUpdatePositionGroup(this);

[keishi, 2016/02/16 02:22:46]

Only update if accessibilty is enabled?

[je_julie(Not used), 2016/02/16 05:19:03]

So far, there is no module which needs radio button index except Accessibility
because normal people don't need radio button index on current spec and web
behavior. So, I'll try to update code more specific to accessibility with
AXRadioButton class on next patch.

+}
+
+unsigned HTMLInputElement::positionInRadioGroup() const
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return 0;
+    scope->updateGroupPosition(this);
+    return m_positonInRadio;
+}
+
+unsigned HTMLInputElement::sizeOfRadioGroup() const
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return 0;
+    return scope->sizeOfGroup(this);
+}
+
 inline void HTMLInputElement::addToRadioButtonGroup()
 {
     if (RadioButtonGroupScope* scope = radioButtonGroupScope())