Splitting fpdfdoc/doc_* part III.

pdfium.gyp

Index: pdfium.gyp
diff --git a/pdfium.gyp b/pdfium.gyp
index c4e1e72ef097e8f62898240ec3751d904e00849a..aa586fdf19170fd763faa20d4aeca822c249945a 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -185,18 +185,26 @@
         'core/fpdfdoc/cpdf_aaction.h',
         'core/fpdfdoc/cpdf_action.h',
         'core/fpdfdoc/cpdf_actionfields.h',
+        'core/fpdfdoc/cpdf_apsettings.cpp',
         'core/fpdfdoc/cpdf_apsettings.h',
         'core/fpdfdoc/cpdf_annot.cpp',
         'core/fpdfdoc/cpdf_annotlist.cpp',
         'core/fpdfdoc/cpdf_bookmark.cpp',
         'core/fpdfdoc/cpdf_bookmarktree.cpp',
+        'core/fpdfdoc/cpdf_defaultappearance.cpp',
         'core/fpdfdoc/cpdf_dest.cpp',
         'core/fpdfdoc/cpdf_docjsactions.cpp',
         'core/fpdfdoc/cpdf_filespec.cpp',
+        'core/fpdfdoc/cpdf_formcontrol.cpp',
+        'core/fpdfdoc/cpdf_formfield.cpp',
+        'core/fpdfdoc/cpdf_iconfit.cpp',
+        'core/fpdfdoc/cpdf_interform.cpp',
         'core/fpdfdoc/cpdf_link.cpp',
         'core/fpdfdoc/cpdf_linklist.cpp',
         'core/fpdfdoc/cpdf_metadata.cpp',
         'core/fpdfdoc/cpdf_nametree.cpp',
+        'core/fpdfdoc/cpdf_numbertree.cpp',
+        'core/fpdfdoc/cpdf_numbertree.h',
         'core/fpdfdoc/cpdf_occontext.cpp',
         'core/fpdfdoc/cpdf_pagelabel.cpp',
         'core/fpdfdoc/cpdf_pagelabel.h',
@@ -220,11 +228,6 @@
         'core/fpdfdoc/csection.h',
         'core/fpdfdoc/ctypeset.cpp',
         'core/fpdfdoc/ctypeset.h',
-        'core/fpdfdoc/doc_form.cpp',
-        'core/fpdfdoc/doc_formcontrol.cpp',
-        'core/fpdfdoc/doc_formfield.cpp',
-        'core/fpdfdoc/doc_utils.cpp',
-        'core/fpdfdoc/doc_utils.h',
         'core/fpdfdoc/include/cpdf_aaction.h',
         'core/fpdfdoc/include/cpdf_action.h',
         'core/fpdfdoc/include/cpdf_actionfields.h',