Update pdfium to 32b639de35f905a5e5559f305d9032cde5ae5c77

- Also add script to simplify future updates
- Rewrite make files. Now they match the Build.gn files better.

Build is similar to: no skia, no v8, no xfa

Bug: 27564090
Change-Id: I28a8c79fd7f71d600c85b0a4a422d18ca8f1267c
diff --git a/samples/image_diff_png.cc b/samples/image_diff_png.cc
index 04c2591..6ad7f88 100644
--- a/samples/image_diff_png.cc
+++ b/samples/image_diff_png.cc
@@ -16,9 +16,9 @@
 
 #include <string>
 
-#include "../third_party/base/logging.h"
-#include "../core/src/fxcodec/fx_zlib/include/fx_zlib.h"
-#include "fx_lpng/include/fx_png.h"
+#include "third_party/base/logging.h"
+#include "third_party/lpng_v163/png.h"
+#include "third_party/zlib_v128/zlib.h"
 
 namespace image_diff_png {