diff --git a/layout/macbuild/layout.xml b/layout/macbuild/layout.xml
index 07874582c676..f14d874a6ec3 100644
--- a/layout/macbuild/layout.xml
+++ b/layout/macbuild/layout.xml
@@ -1375,13 +1375,6 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS>Debug</FILEFLAGS>
                 </FILE>
-                <FILE>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeIndentationFrame.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                    <FILEKIND>Text</FILEKIND>
-                    <FILEFLAGS>Debug</FILEFLAGS>
-                </FILE>
                 <FILE>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsProgressMeterFrame.cpp</PATH>
@@ -1816,13 +1809,6 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS>Debug</FILEFLAGS>
                 </FILE>
-                <FILE>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeLayout.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                    <FILEKIND>Text</FILEKIND>
-                    <FILEFLAGS>Debug</FILEFLAGS>
-                </FILE>
                 <FILE>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsListBoxObject.cpp</PATH>
@@ -2463,11 +2449,6 @@
                     <PATH>nsViewportFrame.cpp</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
-                <FILEREF>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeIndentationFrame.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                </FILEREF>
                 <FILEREF>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsProgressMeterFrame.cpp</PATH>
@@ -2778,11 +2759,6 @@
                     <PATH>nsEditorBoxObject.cpp</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
-                <FILEREF>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeLayout.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                </FILEREF>
                 <FILEREF>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsListBoxObject.cpp</PATH>
@@ -4322,13 +4298,6 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS>Debug</FILEFLAGS>
                 </FILE>
-                <FILE>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeIndentationFrame.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                    <FILEKIND>Text</FILEKIND>
-                    <FILEFLAGS>Debug</FILEFLAGS>
-                </FILE>
                 <FILE>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsProgressMeterFrame.cpp</PATH>
@@ -4763,13 +4732,6 @@
                     <FILEKIND>Text</FILEKIND>
                     <FILEFLAGS>Debug</FILEFLAGS>
                 </FILE>
-                <FILE>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeLayout.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                    <FILEKIND>Text</FILEKIND>
-                    <FILEFLAGS>Debug</FILEFLAGS>
-                </FILE>
                 <FILE>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsListBoxObject.cpp</PATH>
@@ -5410,11 +5372,6 @@
                     <PATH>nsViewportFrame.cpp</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
-                <FILEREF>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeIndentationFrame.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                </FILEREF>
                 <FILEREF>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsProgressMeterFrame.cpp</PATH>
@@ -5725,11 +5682,6 @@
                     <PATH>nsEditorBoxObject.cpp</PATH>
                     <PATHFORMAT>MacOS</PATHFORMAT>
                 </FILEREF>
-                <FILEREF>
-                    <PATHTYPE>Name</PATHTYPE>
-                    <PATH>nsTreeLayout.cpp</PATH>
-                    <PATHFORMAT>MacOS</PATHFORMAT>
-                </FILEREF>
                 <FILEREF>
                     <PATHTYPE>Name</PATHTYPE>
                     <PATH>nsListBoxObject.cpp</PATH>
@@ -6812,12 +6764,6 @@
                 <PATH>nsTextBoxFrame.cpp</PATH>
                 <PATHFORMAT>MacOS</PATHFORMAT>
             </FILEREF>
-            <FILEREF>
-                <TARGETNAME>layout.shlb</TARGETNAME>
-                <PATHTYPE>Name</PATHTYPE>
-                <PATH>nsTreeIndentationFrame.cpp</PATH>
-                <PATHFORMAT>MacOS</PATHFORMAT>
-            </FILEREF>
             <FILEREF>
                 <TARGETNAME>layout.shlb</TARGETNAME>
                 <PATHTYPE>Name</PATHTYPE>