Removes the use of Windows-specific types for accessibility roles and states ...

chrome/views/controls/button/button.cc

Index: chrome/views/controls/button/button.cc
===================================================================
--- chrome/views/controls/button/button.cc	(revision 14426)
+++ chrome/views/controls/button/button.cc	(working copy)
@@ -44,6 +44,11 @@
   return false;
 }
 
+bool Button::GetAccessibleRole(AccessibilityTypes::Role* role) {
+  *role = AccessibilityTypes::ROLE_PUSHBUTTON;
+  return true;
+}
+
 void Button::SetAccessibleKeyboardShortcut(const std::wstring& shortcut) {
   accessible_shortcut_.assign(shortcut);
 }