Merge to XFA: Fix all relative includes to public.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1415803007 .

(cherry picked from commit 5899671184d01b74989d181363066379ef3e4051)

Review URL: https://codereview.chromium.org/1431593007 .
diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index 190286a..66b84dac 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -14,13 +14,13 @@
 #include <utility>
 #include <vector>
 
-#include "../public/fpdf_dataavail.h"
-#include "../public/fpdf_ext.h"
-#include "../public/fpdf_formfill.h"
-#include "../public/fpdf_text.h"
-#include "../public/fpdfview.h"
 #include "../testing/test_support.h"
 #include "image_diff_png.h"
+#include "public/fpdf_dataavail.h"
+#include "public/fpdf_ext.h"
+#include "public/fpdf_formfill.h"
+#include "public/fpdf_text.h"
+#include "public/fpdfview.h"
 
 #ifdef PDF_ENABLE_V8
 #include "v8/include/libplatform/libplatform.h"