Rename xfa_doclayout and xfa_document_layout_imp files.

xfa.gyp

Index: xfa.gyp
diff --git a/xfa.gyp b/xfa.gyp
index e53752a6d65ddf5d8920366068364f985db3101c..1afda401b778b75b643340ed180510bde69de2ef 100644
--- a/xfa.gyp
+++ b/xfa.gyp
@@ -466,6 +466,10 @@
         "xfa/fxfa/parser/cxfa_caption.cpp",
         "xfa/fxfa/parser/cxfa_caption.h",
         "xfa/fxfa/parser/cxfa_corner.h",
+        "xfa/fxfa/parser/cxfa_containerlayoutitem.cpp",
+        "xfa/fxfa/parser/cxfa_containerlayoutitem.h",
+        "xfa/fxfa/parser/cxfa_contentlayoutitem.cpp",
+        "xfa/fxfa/parser/cxfa_contentlayoutitem.h",
         "xfa/fxfa/parser/cxfa_data.cpp",
         "xfa/fxfa/parser/cxfa_data.h",
         "xfa/fxfa/parser/cxfa_document_parser.cpp",
@@ -481,6 +485,10 @@
         "xfa/fxfa/parser/cxfa_font.h",
         "xfa/fxfa/parser/cxfa_image.cpp",
         "xfa/fxfa/parser/cxfa_image.h",
+        "xfa/fxfa/parser/cxfa_layoutitem.cpp",
+        "xfa/fxfa/parser/cxfa_layoutitem.h",
+        "xfa/fxfa/parser/cxfa_layoutprocessor.cpp",
+        "xfa/fxfa/parser/cxfa_layoutprocessor.h",
         "xfa/fxfa/parser/cxfa_line.cpp",
         "xfa/fxfa/parser/cxfa_line.h",
         "xfa/fxfa/parser/cxfa_margin.cpp",
@@ -514,6 +522,7 @@
         "xfa/fxfa/parser/cxfa_thisproxy.cpp",
         "xfa/fxfa/parser/cxfa_tooltip.cpp",
         "xfa/fxfa/parser/cxfa_tooltip.h",
+        "xfa/fxfa/parser/cxfa_traversestrategy_layoutitem.h",
         "xfa/fxfa/parser/cxfa_validate.cpp",
         "xfa/fxfa/parser/cxfa_validate.h",
         "xfa/fxfa/parser/cxfa_value.cpp",
@@ -534,13 +543,10 @@
         "xfa/fxfa/parser/xfa_basic_data_enum.cpp",
         "xfa/fxfa/parser/xfa_basic_data_packets.cpp",
         "xfa/fxfa/parser/xfa_basic_data.h",
-        "xfa/fxfa/parser/xfa_doclayout.h",
         "xfa/fxfa/parser/xfa_document.h",
         "xfa/fxfa/parser/xfa_document_datamerger_imp.cpp",
         "xfa/fxfa/parser/xfa_document_datamerger_imp.h",
         "xfa/fxfa/parser/xfa_document_imp.cpp",
-        "xfa/fxfa/parser/xfa_document_layout_imp.cpp",
-        "xfa/fxfa/parser/xfa_document_layout_imp.h",
         "xfa/fxfa/parser/xfa_document_serialize.cpp",
         "xfa/fxfa/parser/xfa_document_serialize.h",
         "xfa/fxfa/parser/xfa_layout_appadapter.cpp",