Move WebAXObject.cpp to core/ (WIP)

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

Index: third_party/WebKit/Source/modules/accessibility/AXTableRow.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXTableRow.cpp b/third_party/WebKit/Source/modules/accessibility/AXTableRow.cpp
index f84006bee477c0c0a9f254f4df3e93aacdead933..9ea289fb73274ac8bfad9245d3421fc3782fd5dc 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXTableRow.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXTableRow.cpp
@@ -106,7 +106,7 @@ AXObjectImpl* AXTableRow::ParentTable() const {
 }
 
 AXObjectImpl* AXTableRow::HeaderObject() {
-  AXObjectVector headers;
+  AXObjectImplVector headers;
   HeaderObjectsForRow(headers);
   if (!headers.size())
     return 0;
@@ -134,7 +134,7 @@ unsigned AXTableRow::AriaRowIndex() const {
   return 0;
 }
 
-void AXTableRow::HeaderObjectsForRow(AXObjectVector& headers) {
+void AXTableRow::HeaderObjectsForRow(AXObjectImplVector& headers) {
   if (!layout_object_ || !layout_object_->IsTableRow())
     return;