Add QuicStringPiece which is actually StringPiece.

net/tools/quic/quic_spdy_client_stream_test.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/tools/quic/quic_spdy_client_stream.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "net/quic/core/quic_utils.h"
@@ skipping 138 matching lines @@
   stream_->OnStreamFrame(
       QuicStreamFrame(stream_->id(), /*fin=*/false, /*offset=*/0, large_body));
 
   EXPECT_NE(QUIC_STREAM_NO_ERROR, stream_->stream_error());
 }
 
 TEST_F(QuicSpdyClientStreamTest, TestNoBidirectionalStreaming) {
   if (FLAGS_quic_reloadable_flag_quic_always_enable_bidi_streaming) {
     return;
   }
-  QuicStreamFrame frame(kClientDataStreamId1, false, 3, StringPiece("asd"));
+  QuicStreamFrame frame(kClientDataStreamId1, false, 3, QuicStringPiece("asd"));
 
   EXPECT_FALSE(stream_->write_side_closed());
   stream_->OnStreamFrame(frame);
   EXPECT_TRUE(stream_->write_side_closed());
 }
 
 TEST_F(QuicSpdyClientStreamTest, ReceivingTrailers) {
   // Test that receiving trailing headers, containing a final offset, results in
   // the stream being closed at that byte offset.
   // Send headers as usual.
@@ skipping 20 matching lines @@
   stream_->OnStreamFrame(
       QuicStreamFrame(stream_->id(), /*fin=*/false, /*offset=*/0, body_));
   if (FLAGS_quic_reloadable_flag_quic_always_enable_bidi_streaming) {
     EXPECT_TRUE(stream_->reading_stopped());
   }
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net