Add an override of CreateQuicClientSession to QuicSimpleClient so that --drop_response_body_works.

Change-Id: I152b0cc50fab5a8ec20e730238558a62a163eb7c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1815938Reviewed-by: Zhongyi Shi <zhongyi@chromium.org>
Commit-Queue: Ryan Hamilton <rch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#698672}

net/tools/quic/quic_simple_client.cc

@@ -27,6 +27,7 @@
 #include "net/third_party/quiche/src/quic/core/quic_server_id.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_flags.h"
 #include "net/third_party/quiche/src/quic/platform/api/quic_ptr_util.h"
+#include "net/third_party/quiche/src/quic/tools/quic_simple_client_session.h"
 #include "net/third_party/quiche/src/spdy/core/spdy_header_block.h"
 
 using std::string;
@@ -59,6 +60,14 @@ QuicSimpleClient::~QuicSimpleClient() {
   }
 }
 
+std::unique_ptr<quic::QuicSession> QuicSimpleClient::CreateQuicClientSession(
+    const quic::ParsedQuicVersionVector& supported_versions,
+    quic::QuicConnection* connection) {
+  return std::make_unique<quic::QuicSimpleClientSession>(
+      *config(), supported_versions, connection, server_id(), crypto_config(),
+      push_promise_index(), drop_response_body());
+}
+
 QuicChromiumConnectionHelper* QuicSimpleClient::CreateQuicConnectionHelper() {
   return new QuicChromiumConnectionHelper(&clock_,
                                           quic::QuicRandom::GetInstance());

net/tools/quic/quic_simple_client.h

@@ -45,6 +45,10 @@ class QuicSimpleClient : public quic::QuicSpdyClientBase {
 
   ~QuicSimpleClient() override;
 
+  std::unique_ptr<quic::QuicSession> CreateQuicClientSession(
+      const quic::ParsedQuicVersionVector& supported_versions,
+      quic::QuicConnection* connection) override;
+
  private:
   friend class net::test::QuicClientPeer;