Create top-level public/ header directory.

pdfium.gyp

Index: pdfium.gyp
diff --git a/pdfium.gyp b/pdfium.gyp
index 5cb5d8bd2bf4105fc54c92ec6b1cba8cf5e811a4..c24c511438f9695edb5f41ecffce2735440bfe65 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -61,18 +61,6 @@
       ],
       'ldflags': [ '-L<(PRODUCT_DIR)',],
       'sources': [
-        'fpdfsdk/include/fpdfdoc.h',
-        'fpdfsdk/include/fpdfedit.h',
-        'fpdfsdk/include/fpdfformfill.h',
-        'fpdfsdk/include/fpdftext.h',
-        'fpdfsdk/include/fpdfview.h',
-        'fpdfsdk/include/fpdf_dataavail.h',
-        'fpdfsdk/include/fpdf_flatten.h',
-        'fpdfsdk/include/fpdf_progressive.h',
-        'fpdfsdk/include/fpdf_searchex.h',
-        'fpdfsdk/include/fpdf_sysfontinfo.h',
-        'fpdfsdk/include/fpdf_ext.h',
-        'fpdfsdk/include/fpdf_sysfontinfo.h',
         'fpdfsdk/include/fsdk_actionhandler.h',
         'fpdfsdk/include/fsdk_annothandler.h',
         'fpdfsdk/include/fsdk_baseannot.h',
@@ -91,6 +79,7 @@
         'fpdfsdk/src/fpdf_progressive.cpp',
         'fpdfsdk/src/fpdf_searchex.cpp',
         'fpdfsdk/src/fpdf_sysfontinfo.cpp',
+        'fpdfsdk/src/fpdf_transformpage.cpp',
         'fpdfsdk/src/fsdk_actionhandler.cpp',
         'fpdfsdk/src/fsdk_annothandler.cpp',
         'fpdfsdk/src/fsdk_baseannot.cpp',
@@ -99,8 +88,21 @@
         'fpdfsdk/src/fsdk_rendercontext.cpp',
         'fpdfsdk/src/fpdfsdkdll.rc',
         'fpdfsdk/src/resource.h',
-        'fpdfsdk/include/fpdf_transformpage.h',
-        'fpdfsdk/src/fpdf_transformpage.cpp',
+        'public/fpdf_dataavail.h',
+        'public/fpdf_doc.h',
+        'public/fpdf_edit.h',
+        'public/fpdf_ext.h',
+        'public/fpdf_flatten.h',
+        'public/fpdf_formfill.h',
+        'public/fpdf_fwlevent.h',
+        'public/fpdf_ppo.h',
+        'public/fpdf_progressive.h',
+        'public/fpdf_save.h',
+        'public/fpdf_searchex.h',
+        'public/fpdf_sysfontinfo.h',
+        'public/fpdf_text.h',
+        'public/fpdf_transformpage.h',
+        'public/fpdfview.h',
       ],
       'conditions': [
         ['OS!="win"', {