Only SolidBrush types are created, remove other brushes.

xfa.gyp

 {
   "variables": {
     "pdf_enable_v8%": 1,
   },
   "target_defaults": {
     "defines": [
       "PDF_ENABLE_XFA",
     ],
     'msvs_disabled_warnings': [
       4005, 4018, 4146, 4333, 4345, 4267,
@@ skipping 44 matching lines @@
         "xfa/fde/css/fde_cssdatatable.h",
         "xfa/fde/css/fde_cssdeclaration.cpp",
         "xfa/fde/css/fde_cssdeclaration.h",
         "xfa/fde/css/fde_cssstyleselector.cpp",
         "xfa/fde/css/fde_cssstyleselector.h",
         "xfa/fde/css/fde_cssstylesheet.cpp",
         "xfa/fde/css/fde_cssstylesheet.h",
         "xfa/fde/css/fde_csssyntax.cpp",
         "xfa/fde/css/fde_csssyntax.h",
         "xfa/fde/fde_brush.h",
-        "xfa/fde/fde_devbasic.cpp",
-        "xfa/fde/fde_devbasic.h",
         "xfa/fde/fde_renderdevice.h",
         "xfa/fde/fde_gedevice.cpp",
         "xfa/fde/fde_gedevice.h",
         "xfa/fde/fde_geobject.cpp",
         "xfa/fde/fde_geobject.h",
         "xfa/fde/fde_image.h",
         "xfa/fde/fde_iterator.cpp",
         "xfa/fde/fde_iterator.h",
-        "xfa/fde/fde_object.cpp",
         "xfa/fde/fde_object.h",
         "xfa/fde/fde_path.h",
         "xfa/fde/fde_pen.h",
         "xfa/fde/fde_render.cpp",
         "xfa/fde/fde_render.h",
         "xfa/fde/tto/fde_textout.cpp",
         "xfa/fde/tto/fde_textout.h",
         "xfa/fde/xml/fde_xml.h",
         "xfa/fde/xml/fde_xml_imp.cpp",
         "xfa/fde/xml/fde_xml_imp.h",
@@ skipping 705 matching lines @@
           "sources": [],
         }],
         ["OS == 'mac'", {
           "configurations": {},
           "sources": [],
         }],
       ]
     }
   ]
 }