Revert of Rename AXObject to AXObjectImpl in modules/ and web/

third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp b/third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp
index bb587743b487b9c5909cbf286e0d754898282149..bdf674aec4958daa8e4d22dc1439592f8f786341 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXRadioInput.cpp
@@ -39,7 +39,7 @@
 void AXRadioInput::RequestUpdateToNextNode(bool forward) {
   HTMLInputElement* next_element =
       RadioInputType::NextRadioButtonInGroup(GetElement(), forward);
-  AXObjectImpl* next_a_xobject = AxObjectCache().Get(next_element);
+  AXObject* next_a_xobject = AxObjectCache().Get(next_element);
   if (!next_a_xobject || !next_a_xobject->IsAXRadioInput())
     return;
 
@@ -85,10 +85,9 @@
   HTMLInputElement* prev_element =
       RadioInputType::NextRadioButtonInGroup(GetElement(), false);
   if (prev_element) {
-    AXObjectImpl* object = AxObjectCache().Get(prev_element);
-    // If the previous element doesn't have AXObjectImpl yet, caculate position
-    // from the first element.  Otherwise, get position from the previous
-    // AXObjectImpl.
+    AXObject* object = AxObjectCache().Get(prev_element);
+    // If the previous element doesn't have AXObject yet, caculate position from
+    // the first element.  Otherwise, get position from the previous AXObject.
     if (!object || !object->IsAXRadioInput()) {
       position = CountFromFirstElement();
     } else {