Split off IPDF_CryptoHandler into its own .cpp/.h files

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index e357dfafd4e315cdabfd09c16ce49d495887b096..869d46e386d5e73a865991dd4f371ca6d37dbd81 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -248,6 +248,7 @@ static_library("fpdfapi") {
     "core/include/fpdfapi/fpdf_render.h",
     "core/include/fpdfapi/fpdf_resource.h",
     "core/include/fpdfapi/fpdf_serial.h",
+    "core/include/fpdfapi/ipdf_crypto_handler.h",
     "core/include/fpdfapi/ipdf_security_handler.h",
     "core/src/fpdfapi/fpdf_basic_module.cpp",
     "core/src/fpdfapi/fpdf_cmaps/CNS1/Adobe-CNS1-UCS2_5.cpp",
@@ -338,12 +339,13 @@ static_library("fpdfapi") {
     "core/src/fpdfapi/fpdf_parser/cpdf_document.cpp",
     "core/src/fpdfapi/fpdf_parser/cpdf_parser.cpp",
     "core/src/fpdfapi/fpdf_parser/cpdf_simple_parser.cpp",
+    "core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.cpp",
+    "core/src/fpdfapi/fpdf_parser/cpdf_standard_crypto_handler.h",
     "core/src/fpdfapi/fpdf_parser/cpdf_standard_security_handler.cpp",
     "core/src/fpdfapi/fpdf_parser/cpdf_standard_security_handler.h",
     "core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp",
     "core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h",
     "core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp",
-    "core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp",
     "core/src/fpdfapi/fpdf_parser/fpdf_parser_fdf.cpp",
     "core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp",
     "core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp",
@@ -860,7 +862,6 @@ if (pdf_enable_xfa) {
       "xfa/src/fde/fde_brush.h",
       "xfa/src/fde/fde_devbasic.cpp",
       "xfa/src/fde/fde_devbasic.h",
-      "xfa/src/fde/fde_renderdevice.h",
       "xfa/src/fde/fde_gedevice.cpp",
       "xfa/src/fde/fde_gedevice.h",
       "xfa/src/fde/fde_geobject.cpp",
@@ -874,6 +875,7 @@ if (pdf_enable_xfa) {
       "xfa/src/fde/fde_pen.h",
       "xfa/src/fde/fde_render.cpp",
       "xfa/src/fde/fde_render.h",
+      "xfa/src/fde/fde_renderdevice.h",
       "xfa/src/fde/tto/fde_textout.cpp",
       "xfa/src/fde/tto/fde_textout.h",
       "xfa/src/fde/xml/fde_xml.h",