Merge to XFA: Make FPDF_WIDESTRING work regardless of endianness.

samples/pdfium_test.cc

Index: samples/pdfium_test.cc
diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index 112e7800c06bf7689e03d8503ece5fbd8fc60c70..6bf1ec18cea6ed8a88f81a3f40719045b504db2c 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -196,7 +196,7 @@ void WriteEmf(FPDF_PAGE page, const char* pdf_name, int num) {
 
 int ExampleAppAlert(IPDF_JSPLATFORM*, FPDF_WIDESTRING msg, FPDF_WIDESTRING,
                     int, int) {
-  std::wstring platform_string = GetWideString(msg);
+  std::wstring platform_string = GetPlatformWString(msg);
   printf("Alert: %ls\n", platform_string.c_str());
   return 0;
 }