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

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index 4c5698d9b2f75ecd9beedc41ca75cfde121445cf..ecf025f9b8bbdf102ff34cfc044e347942b63755 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -4291,8 +4291,8 @@
   }
 
   if (!focus_change_blocked && focused_element_) {
-    // Create the AXObjectImpl cache in a focus change because Chromium relies
-    // on it.
+    // Create the AXObject cache in a focus change because Chromium relies on
+    // it.
     if (AXObjectCache* cache = AxObjectCache())
       cache->HandleFocusedUIElementChanged(old_focused_element,
                                            new_focused_element);