Get rid of NULLs in core/

core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp

Index: core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp
diff --git a/core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp b/core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp
index ac6346cf7f3941ffbcdf0b8218f64788fbe6737d..1649bf429f80138cf9961f4951ce7054781519bd 100644
--- a/core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp
+++ b/core/fpdfapi/fpdf_cmaps/Korea1/cmaps_korea1.cpp
@@ -14,27 +14,27 @@
 
 static const FXCMAP_CMap g_FXCMAP_Korea1_cmaps[] = {
     {"KSC-EUC-H", FXCMAP_CMap::Range, g_FXCMAP_KSC_EUC_H_0, 467,
-     FXCMAP_CMap::None, NULL, 0, 0},
+     FXCMAP_CMap::None, nullptr, 0, 0},
     {"KSC-EUC-V", FXCMAP_CMap::Range, g_FXCMAP_KSC_EUC_V_0, 16,
-     FXCMAP_CMap::None, NULL, 0, -1},
+     FXCMAP_CMap::None, nullptr, 0, -1},
     {"KSCms-UHC-H", FXCMAP_CMap::Range, g_FXCMAP_KSCms_UHC_H_1, 675,
-     FXCMAP_CMap::None, NULL, 0, -2},
+     FXCMAP_CMap::None, nullptr, 0, -2},
     {"KSCms-UHC-V", FXCMAP_CMap::Range, g_FXCMAP_KSCms_UHC_V_1, 16,
-     FXCMAP_CMap::None, NULL, 0, -1},
+     FXCMAP_CMap::None, nullptr, 0, -1},
     {"KSCms-UHC-HW-H", FXCMAP_CMap::Range, g_FXCMAP_KSCms_UHC_HW_H_1, 675,
-     FXCMAP_CMap::None, NULL, 0, 0},
+     FXCMAP_CMap::None, nullptr, 0, 0},
     {"KSCms-UHC-HW-V", FXCMAP_CMap::Range, g_FXCMAP_KSCms_UHC_HW_V_1, 16,
-     FXCMAP_CMap::None, NULL, 0, -1},
+     FXCMAP_CMap::None, nullptr, 0, -1},
     {"KSCpc-EUC-H", FXCMAP_CMap::Range, g_FXCMAP_KSCpc_EUC_H_0, 509,
-     FXCMAP_CMap::None, NULL, 0, -6},
+     FXCMAP_CMap::None, nullptr, 0, -6},
     {"UniKS-UCS2-H", FXCMAP_CMap::Range, g_FXCMAP_UniKS_UCS2_H_1, 8394,
-     FXCMAP_CMap::None, NULL, 0, 0},
+     FXCMAP_CMap::None, nullptr, 0, 0},
     {"UniKS-UCS2-V", FXCMAP_CMap::Range, g_FXCMAP_UniKS_UCS2_V_1, 18,
-     FXCMAP_CMap::None, NULL, 0, -1},
+     FXCMAP_CMap::None, nullptr, 0, -1},
     {"UniKS-UTF16-H", FXCMAP_CMap::Single, g_FXCMAP_UniKS_UTF16_H_0, 158,
-     FXCMAP_CMap::None, NULL, 0, -2},
+     FXCMAP_CMap::None, nullptr, 0, -2},
     {"UniKS-UTF16-V", FXCMAP_CMap::Range, g_FXCMAP_UniKS_UCS2_V_1, 18,
-     FXCMAP_CMap::None, NULL, 0, -1},
+     FXCMAP_CMap::None, nullptr, 0, -1},
 };
 
 void CPDF_ModuleMgr::LoadEmbeddedKorea1CMaps() {