--- a/third_party/zlib/google/zip_reader.cc
+++ b/third_party/zlib/google/zip_reader.cc
@@ -314,32 +314,6 @@
   bool physical_path_is_directory = false;
   bool physical_path_is_unsafe = false;
 
-  // If an Info-ZIP Unicode Path Extra Field is present, the physical Central
-  // Directory path is about to be overridden. Decode and normalize it now into
-  // `entry_.physical_path` so consumers (e.g. Safe Browsing) can still see the
-  // name that other tools (e.g. Windows Explorer) would use for extraction.
-  if (info.size_utf8_filename > 0) {
-    std::u16string physical_path_in_utf16;
-    if (!base::CodepageToUTF16(entry_.path_in_original_encoding,
-                               configured_encoding,
-                               base::OnStringConversionError::SUBSTITUTE,
-                               &physical_path_in_utf16)) {
-      LOG(ERROR) << "Cannot convert path from encoding " << configured_encoding;
-      return false;
-    }
-    // Normalize() stores the normalized result in entry_.path; copy it before
-    // applying the Unicode Path Extra Field below.
-    Normalize(physical_path_in_utf16);
-    entry_.physical_path = entry_.path;
-    physical_path_is_directory = entry_.is_directory;
-    physical_path_is_unsafe = entry_.is_unsafe;
-
-    // Use the Info-ZIP Unicode Path Extra Field if present.
-    DCHECK(info.utf8_filename[info.size_utf8_filename] == '\0');
-    entry_.path_in_original_encoding = info.utf8_filename;
-    entry_path_encoding = base::kCodepageUTF8;
-  }
-
   // Convert path from original encoding to Unicode.
   std::u16string path_in_utf16;
   if (!base::CodepageToUTF16(entry_.path_in_original_encoding,
@@ -353,17 +327,9 @@
   // Normalize path.
   Normalize(path_in_utf16);
 
-  if (info.size_utf8_filename > 0) {
-    // Treat an entry as a directory only if both names are directories;
-    // otherwise callers that analyze file entries should inspect it as a file.
-    entry_.is_directory = entry_.is_directory && physical_path_is_directory;
-    // Treat an entry as unsafe if either name is unsafe.
-    entry_.is_unsafe = entry_.is_unsafe || physical_path_is_unsafe;
-  } else {
-    // In the common case (no Unicode Path Extra Field) the physical path
-    // matches the effective path.
-    entry_.physical_path = entry_.path;
-  }
+  // In the common case (no Unicode Path Extra Field) the physical path
+  // matches the effective path.
+  entry_.physical_path = entry_.path;
 
   entry_.original_size = info.uncompressed_size;