extensions: Reuse crx_file's HashedIdInHex() function in SimpleFeature.

extensions/common/features/simple_feature.cc

Index: extensions/common/features/simple_feature.cc
diff --git a/extensions/common/features/simple_feature.cc b/extensions/common/features/simple_feature.cc
index 6a5bece485df46b7ccc9db8ef21c5d62a521ba93..34258d4f0c602f4794dc1c32dcae9b267683b08e 100644
--- a/extensions/common/features/simple_feature.cc
+++ b/extensions/common/features/simple_feature.cc
@@ -16,10 +16,13 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
+#include "components/crx_file/id_util.h"
 #include "extensions/common/extension_api.h"
 #include "extensions/common/features/feature_provider.h"
 #include "extensions/common/switches.h"
 
+using crx_file::id_util::HashedIdInHex;
+
 namespace extensions {
 
 namespace {
@@ -207,12 +210,6 @@ std::string ListDisplayNames(const std::vector<EnumType>& enum_types) {
   return display_name_list;
 }
 
-std::string HashExtensionId(const std::string& extension_id) {
-  const std::string id_hash = base::SHA1HashString(extension_id);
-  DCHECK_EQ(base::kSHA1Length, id_hash.length());
-  return base::HexEncode(id_hash.c_str(), id_hash.length());
-}
-
 bool IsCommandLineSwitchEnabled(const std::string& switch_name) {
   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switch_name + "=1"))
@@ -568,7 +565,7 @@ bool SimpleFeature::IsIdInArray(const std::string& extension_id,
   const char* const* end = array + array_length;
 
   return ((std::find(start, end, extension_id) != end) ||
-          (std::find(start, end, HashExtensionId(extension_id)) != end));
+          (std::find(start, end, HashedIdInHex(extension_id)) != end));
 }
 
 // static
@@ -578,7 +575,7 @@ bool SimpleFeature::IsIdInList(const std::string& extension_id,
     return false;
 
   return (ContainsValue(list, extension_id) ||
-          ContainsValue(list, HashExtensionId(extension_id)));
+          ContainsValue(list, HashedIdInHex(extension_id)));
 }
 
 bool SimpleFeature::MatchesManifestLocation(