Move quic_flags.h from net/quic/core to net/quic/platform and split into api and impl.

net/tools/quic/test_tools/quic_test_client.cc

 // Copyright (c) 2012 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/test_tools/quic_test_client.h"
 
 #include <memory>
 #include <utility>
 #include <vector>
 
 #include "net/quic/core/crypto/proof_verifier.h"
-#include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_server_id.h"
 #include "net/quic/core/quic_utils.h"
 #include "net/quic/core/spdy_utils.h"
+#include "net/quic/platform/api/quic_flags.h"
 #include "net/quic/platform/api/quic_logging.h"
 #include "net/quic/platform/api/quic_ptr_util.h"
 #include "net/quic/platform/api/quic_stack_trace.h"
 #include "net/quic/platform/api/quic_text_utils.h"
 #include "net/quic/platform/api/quic_url.h"
 #include "net/quic/test_tools/crypto_test_utils.h"
 #include "net/quic/test_tools/quic_connection_peer.h"
 #include "net/quic/test_tools/quic_spdy_session_peer.h"
 #include "net/quic/test_tools/quic_stream_peer.h"
 #include "net/quic/test_tools/quic_test_utils.h"
@@ skipping 766 matching lines @@
 
 void QuicTestClient::ClearPerConnectionState() {
   ClearPerRequestState();
   open_streams_.clear();
   closed_stream_states_.clear();
   latest_created_stream_ = nullptr;
 }
 
 }  // namespace test
 }  // namespace net