Rename xfa_layout_pagemgr_new.h

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index 0b9b4e0a95c1230c1745bbaaac50b7680d5be83d..11b73b3a7aacb94f29b0d73026d4cb1b4525f125 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1438,6 +1438,8 @@ if (pdf_enable_xfa) {
       "xfa/fxfa/parser/cxfa_image.h",
       "xfa/fxfa/parser/cxfa_layoutitem.cpp",
       "xfa/fxfa/parser/cxfa_layoutitem.h",
+      "xfa/fxfa/parser/cxfa_layoutpagemgr.cpp",
+      "xfa/fxfa/parser/cxfa_layoutpagemgr.h",
       "xfa/fxfa/parser/cxfa_layoutprocessor.cpp",
       "xfa/fxfa/parser/cxfa_layoutprocessor.h",
       "xfa/fxfa/parser/cxfa_line.cpp",
@@ -1500,8 +1502,6 @@ if (pdf_enable_xfa) {
       "xfa/fxfa/parser/xfa_document_datamerger_imp.h",
       "xfa/fxfa/parser/xfa_layout_itemlayout.cpp",
       "xfa/fxfa/parser/xfa_layout_itemlayout.h",
-      "xfa/fxfa/parser/xfa_layout_pagemgr_new.cpp",
-      "xfa/fxfa/parser/xfa_layout_pagemgr_new.h",
       "xfa/fxfa/parser/xfa_locale.cpp",
       "xfa/fxfa/parser/xfa_locale.h",
       "xfa/fxfa/parser/xfa_localemgr.cpp",