Issue #80 - reinstated unified building for some large chunks of our code.

This should reduce compile complexity saving time and reducing linker stress.

netwerk/streamconv/converters/moz.build

@@ -9,7 +9,7 @@ XPIDL_SOURCES += [
 
 XPIDL_MODULE = 'necko_http'
 
-SOURCES += [
+UNIFIED_SOURCES += [
     'mozTXTToHTMLConv.cpp',
     'nsDirIndex.cpp',
     'nsDirIndexParser.cpp',
@@ -21,13 +21,13 @@ SOURCES += [
 ]
 
 if 'ftp' in CONFIG['NECKO_PROTOCOLS']:
-    SOURCES += [
+    UNIFIED_SOURCES += [
         'nsFTPDirListingConv.cpp',
         'ParseFTPList.cpp',
     ]
 
 if CONFIG['MOZ_WIDGET_TOOLKIT'] != 'cocoa':
-    SOURCES += [
+    UNIFIED_SOURCES += [
         'nsBinHexDecoder.cpp',
     ]