Break xfa_parser_imp apart

xfa/fxfa/parser/xfa_document_imp.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fxfa/app/xfa_ffnotify.h"
+#include "xfa/fxfa/parser/cxfa_document_parser.h"
 #include "xfa/fxfa/parser/xfa_basic_imp.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
 #include "xfa/fxfa/parser/xfa_document.h"
 #include "xfa/fxfa/parser/xfa_document_layout_imp.h"
 #include "xfa/fxfa/parser/xfa_localemgr.h"
 #include "xfa/fxfa/parser/xfa_object.h"
-#include "xfa/fxfa/parser/xfa_parser_imp.h"
 #include "xfa/fxfa/parser/xfa_script.h"
 #include "xfa/fxfa/parser/xfa_script_datawindow.h"
 #include "xfa/fxfa/parser/xfa_script_eventpseudomodel.h"
 #include "xfa/fxfa/parser/xfa_script_hostpseudomodel.h"
 #include "xfa/fxfa/parser/xfa_script_imp.h"
 #include "xfa/fxfa/parser/xfa_script_layoutpseudomodel.h"
 #include "xfa/fxfa/parser/xfa_script_logpseudomodel.h"
 #include "xfa/fxfa/parser/xfa_script_signaturepseudomodel.h"
 #include "xfa/fxfa/parser/xfa_utils.h"
 
@@ skipping 380 matching lines @@
       if (!mIDMap.Lookup(FX_HashCode_GetW(wsID, false), pProtoNode)) {
         continue;
       }
     }
     if (!pProtoNode) {
       continue;
     }
     XFA_ProtoMerge_MergeNode(this, pUseHrefNode, pProtoNode);
   }
 }