diff --git a/spdy/core/http2_frame_decoder_adapter.cc b/spdy/core/http2_frame_decoder_adapter.cc
index ac53496..d5b20f0 100644
--- a/spdy/core/http2_frame_decoder_adapter.cc
+++ b/spdy/core/http2_frame_decoder_adapter.cc
@@ -21,7 +21,6 @@
 #include "net/third_party/quiche/src/http2/decoder/http2_frame_decoder_listener.h"
 #include "net/third_party/quiche/src/http2/http2_constants.h"
 #include "net/third_party/quiche/src/http2/http2_structures.h"
-#include "net/third_party/quiche/src/http2/platform/api/http2_string.h"
 #include "net/third_party/quiche/src/spdy/core/hpack/hpack_decoder_adapter.h"
 #include "net/third_party/quiche/src/spdy/core/hpack/hpack_header_table.h"
 #include "net/third_party/quiche/src/spdy/core/spdy_alt_svc_wire_format.h"
diff --git a/spdy/core/http2_frame_decoder_adapter.h b/spdy/core/http2_frame_decoder_adapter.h
index 3c05858..93da684 100644
--- a/spdy/core/http2_frame_decoder_adapter.h
+++ b/spdy/core/http2_frame_decoder_adapter.h
@@ -9,6 +9,7 @@
 
 #include <cstdint>
 #include <memory>
+#include <string>
 
 #include "net/third_party/quiche/src/http2/decoder/http2_frame_decoder.h"
 #include "net/third_party/quiche/src/http2/platform/api/http2_optional.h"
@@ -251,8 +252,8 @@
   Http2Optional<size_t> opt_pad_length_;
 
   // Temporary buffers for the AltSvc fields.
-  Http2String alt_svc_origin_;
-  Http2String alt_svc_value_;
+  std::string alt_svc_origin_;
+  std::string alt_svc_value_;
 
   // Listener used if we transition to an error state; the listener ignores all
   // the callbacks.