diff --git a/src/reader/wgsl/parser.cc b/src/reader/wgsl/parser.cc
index e24066a4b0..323caeae81 100644
--- a/src/reader/wgsl/parser.cc
+++ b/src/reader/wgsl/parser.cc
@@ -21,13 +21,7 @@ namespace reader {
 namespace wgsl {
 
 Parser::Parser(Context* ctx, Source::File const* file)
-    : Reader(ctx), impl_(std::make_unique<ParserImpl>(ctx, file, false)) {}
-
-Parser::Parser(Context* ctx, const std::string& content)
-    : Reader(ctx),
-      impl_(std::make_unique<ParserImpl>(ctx,
-                                         new Source::File("", content),
-                                         true)) {}
+    : Reader(ctx), impl_(std::make_unique<ParserImpl>(ctx, file)) {}
 
 Parser::~Parser() = default;
 
diff --git a/src/reader/wgsl/parser.h b/src/reader/wgsl/parser.h
index ff835b8160..ddff63fc3f 100644
--- a/src/reader/wgsl/parser.h
+++ b/src/reader/wgsl/parser.h
@@ -34,14 +34,6 @@ class Parser : public Reader {
   /// @param ctx the non-null context object
   /// @param file the input source file to parse
   Parser(Context* ctx, Source::File const* file);
-
-  /// Creates a new parser from the given file content.
-  /// @param ctx the non-null context object
-  /// @param content the input string to parse
-  /// TODO(bclayton): Remove this constructor.
-  /// It purely exists to break up changes into bite sized pieces.
-  Parser(Context* ctx, const std::string& content);
-
   ~Parser() override;
 
   /// Run the parser
diff --git a/src/reader/wgsl/parser_impl.cc b/src/reader/wgsl/parser_impl.cc
index 174bada62f..eb4322194a 100644
--- a/src/reader/wgsl/parser_impl.cc
+++ b/src/reader/wgsl/parser_impl.cc
@@ -119,17 +119,10 @@ bool IsFunctionDecoration(Token t) {
 
 }  // namespace
 
-ParserImpl::ParserImpl(Context* ctx, Source::File const* file, bool owns_file)
-    : ctx_(*ctx),
-      lexer_(std::make_unique<Lexer>(file)),
-      file_(file),
-      owns_file_(owns_file) {}
+ParserImpl::ParserImpl(Context* ctx, Source::File const* file)
+    : ctx_(*ctx), lexer_(std::make_unique<Lexer>(file)) {}
 
-ParserImpl::~ParserImpl() {
-  if (owns_file_) {
-    delete file_;
-  }
-}
+ParserImpl::~ParserImpl() = default;
 
 void ParserImpl::set_error(const Token& t, const std::string& err) {
   diag::Diagnostic diagnostic;
diff --git a/src/reader/wgsl/parser_impl.h b/src/reader/wgsl/parser_impl.h
index 882093aa96..8ea3e6cdd3 100644
--- a/src/reader/wgsl/parser_impl.h
+++ b/src/reader/wgsl/parser_impl.h
@@ -89,11 +89,7 @@ class ParserImpl {
   /// Creates a new parser using the given file
   /// @param ctx the non-null context object
   /// @param file the input source file to parse
-  /// @param owns_file if true, the file will be deleted on parser destruction.
-  /// TODO(bclayton): Remove owns_file.
-  /// It purely exists to break up changes into bite sized pieces.
-  ParserImpl(Context* ctx, Source::File const* file, bool owns_file = false);
-
+  ParserImpl(Context* ctx, Source::File const* file);
   ~ParserImpl();
 
   /// Run the parser
@@ -431,9 +427,6 @@ class ParserImpl {
   std::deque<Token> token_queue_;
   std::unordered_map<std::string, ast::type::Type*> registered_constructs_;
   ast::Module module_;
-
-  Source::File const* file_;
-  bool owns_file_;
 };
 
 }  // namespace wgsl