Remove IPDF_CryptoHandler and IPDF_SecurityHandler.

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index fd6faca9a186e4ee19d01b5d7d5d0073a785b2c4..f57bec317781d561f4b6f6c2f5be68539646eb7f 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -410,6 +410,8 @@ static_library("fpdfapi") {
     "core/fpdfapi/fpdf_parser/cpdf_array.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_boolean.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_boolean.h",
+    "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.cpp",
+    "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.h",
     "core/fpdfapi/fpdf_parser/cpdf_data_avail.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_data_avail.h",
     "core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp",
@@ -424,11 +426,9 @@ static_library("fpdfapi") {
     "core/fpdfapi/fpdf_parser/cpdf_object.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_parser.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_reference.cpp",
+    "core/fpdfapi/fpdf_parser/cpdf_security_handler.cpp",
+    "core/fpdfapi/fpdf_parser/cpdf_security_handler.h",
     "core/fpdfapi/fpdf_parser/cpdf_simple_parser.cpp",
-    "core/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp",
-    "core/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h",
-    "core/fpdfapi/fpdf_parser/cpdf_standard_security_handler.cpp",
-    "core/fpdfapi/fpdf_parser/cpdf_standard_security_handler.h",
     "core/fpdfapi/fpdf_parser/cpdf_stream.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_stream_acc.cpp",
     "core/fpdfapi/fpdf_parser/cpdf_string.cpp",
@@ -453,10 +453,8 @@ static_library("fpdfapi") {
     "core/fpdfapi/fpdf_parser/include/cpdf_string.h",
     "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h",
     "core/fpdfapi/fpdf_parser/include/ipdf_data_avail.h",
-    "core/fpdfapi/fpdf_parser/ipdf_crypto_handler.h",
     "core/fpdfapi/fpdf_parser/ipdf_occontext.cpp",
     "core/fpdfapi/fpdf_parser/ipdf_occontext.h",
-    "core/fpdfapi/fpdf_parser/ipdf_security_handler.h",
     "core/fpdfapi/fpdf_render/cpdf_pagerendercache.h",
     "core/fpdfapi/fpdf_render/fpdf_render.cpp",
     "core/fpdfapi/fpdf_render/fpdf_render_cache.cpp",