Unused FWL Classes.

xfa.gyp

Index: xfa.gyp
diff --git a/xfa.gyp b/xfa.gyp
index a0de466975232621ebec7c9dbba69cc28a31d7a9..8e050f75690d130aeb274e423f4e673427137612 100644
--- a/xfa.gyp
+++ b/xfa.gyp
@@ -183,8 +183,6 @@
         "xfa/fwl/core/cfwl_widgetimpproperties.h",
         "xfa/fwl/core/fwl_appimp.cpp",
         "xfa/fwl/core/fwl_appimp.h",
-        "xfa/fwl/core/fwl_contentimp.cpp",
-        "xfa/fwl/core/fwl_contentimp.h",
         "xfa/fwl/core/fwl_error.h",
         "xfa/fwl/core/fwl_formimp.cpp",
         "xfa/fwl/core/fwl_formimp.h",
@@ -208,16 +206,12 @@
         "xfa/fwl/core/ifwl_adapterthreadmgr.h",
         "xfa/fwl/core/ifwl_adapterwidgetmgr.h",
         "xfa/fwl/core/ifwl_app.h",
-        "xfa/fwl/core/ifwl_content.h",
-        "xfa/fwl/core/ifwl_custom.h",
-        "xfa/fwl/core/ifwl_custompanel.h",
         "xfa/fwl/core/ifwl_dataprovider.h",
         "xfa/fwl/core/ifwl_form.h",
         "xfa/fwl/core/ifwl_notedriver.h",
         "xfa/fwl/core/ifwl_noteloop.h",
         "xfa/fwl/core/ifwl_notethread.h",
         "xfa/fwl/core/ifwl_panel.h",
-        "xfa/fwl/core/ifwl_proxy.h",
         "xfa/fwl/core/ifwl_target.h",
         "xfa/fwl/core/ifwl_themeprovider.h",
         "xfa/fwl/core/ifwl_thread.h",
@@ -228,8 +222,6 @@
         "xfa/fwl/core/ifwl_widgetmgr.h",
         "xfa/fwl/core/ifwl_widgetmgrdelegate.h",
         "xfa/fwl/core/include/ifwl_adaptertimermgr.h",
-        "xfa/fwl/lightwidget/cfwl_app.cpp",
-        "xfa/fwl/lightwidget/cfwl_app.h",
         "xfa/fwl/lightwidget/cfwl_barcode.cpp",
         "xfa/fwl/lightwidget/cfwl_barcode.h",
         "xfa/fwl/lightwidget/cfwl_checkbox.cpp",