Rename both As{Byte,Wide}StringC() helpers to AsStringC().

core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp

Index: core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
diff --git a/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp b/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
index 17fd891d1b70e4f376e92360c1e8d8e82f7902d0..362991f72378dba96f3c035fe9e291b52a72046c 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_object_unittest.cpp
@@ -135,7 +135,7 @@ class PDFObjectsTest : public testing::Test {
           return false;
         for (CPDF_Dictionary::const_iterator it = dict1->begin();
              it != dict1->end(); ++it) {
-          if (!Equal(it->second, dict2->GetObjectBy(it->first.AsByteStringC())))
+          if (!Equal(it->second, dict2->GetObjectBy(it->first.AsStringC())))
             return false;
         }
         return true;