In QUIC, send data is copied to streams rather than frames. Protected by FLAGS_quic_reloadable_flag…

net/quic/core/quic_packet_generator_test.cc

Index: net/quic/core/quic_packet_generator_test.cc
diff --git a/net/quic/core/quic_packet_generator_test.cc b/net/quic/core/quic_packet_generator_test.cc
index d72e191c4cd79ecf6880b01b1efe4581eede8f32..254098ca536d972fafa682a0fdf0661564dcb96a 100644
--- a/net/quic/core/quic_packet_generator_test.cc
+++ b/net/quic/core/quic_packet_generator_test.cc
@@ -22,6 +22,7 @@
 #include "net/quic/test_tools/quic_packet_creator_peer.h"
 #include "net/quic/test_tools/quic_packet_generator_peer.h"
 #include "net/quic/test_tools/quic_test_utils.h"
+#include "net/quic/test_tools/simple_data_producer.h"
 #include "net/quic/test_tools/simple_quic_framer.h"
 
 using std::string;
@@ -69,7 +70,23 @@ class MockDelegate : public QuicPacketGenerator::DelegateInterface {
         .WillRepeatedly(Return(true));
   }
 
+  void SaveStreamData(QuicStreamId id,
+                      QuicIOVector iov,
+                      size_t iov_offset,
+                      QuicStreamOffset offset,
+                      QuicByteCount data_length) override {
+    producer_.SaveStreamData(id, iov, iov_offset, offset, data_length);
+  }
+  bool WriteStreamData(QuicStreamId id,
+                       QuicStreamOffset offset,
+                       QuicByteCount data_length,
+                       QuicDataWriter* writer) override {
+    return producer_.WriteStreamData(id, offset, data_length, writer);
+  }
+
  private:
+  SimpleDataProducer producer_;
+
   DISALLOW_COPY_AND_ASSIGN(MockDelegate);
 };
 
@@ -116,6 +133,8 @@ class QuicPacketGeneratorTest : public QuicTest {
     creator_->SetEncrypter(ENCRYPTION_FORWARD_SECURE,
                            new NullEncrypter(Perspective::IS_CLIENT));
     creator_->set_encryption_level(ENCRYPTION_FORWARD_SECURE);
+    generator_.SetDelegateSavesData(
+        FLAGS_quic_reloadable_flag_quic_stream_owns_data);
   }
 
   ~QuicPacketGeneratorTest() override {
@@ -228,6 +247,7 @@ class QuicPacketGeneratorTest : public QuicTest {
  private:
   std::unique_ptr<char[]> data_array_;
   struct iovec iov_;
+  SimpleDataProducer producer_;
 };
 
 class MockDebugDelegate : public QuicPacketCreator::DebugDelegate {