Move shared files in net/quic/ into net/quic/core/

net/quic/test_tools/mock_clock.h

 // 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.
 
 #ifndef NET_QUIC_TEST_TOOLS_MOCK_CLOCK_H_
 #define NET_QUIC_TEST_TOOLS_MOCK_CLOCK_H_
 
-#include "net/quic/quic_clock.h"
-
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/time/time.h"
+#include "net/quic/core/quic_clock.h"
 
 namespace net {
 
 class MockClock : public QuicClock {
  public:
   MockClock();
   ~MockClock() override;
 
   void AdvanceTime(QuicTime::Delta delta);
 
   QuicTime Now() const override;
 
   QuicTime ApproximateNow() const override;
 
   QuicWallTime WallNow() const override;
 
   base::TimeTicks NowInTicks() const;
 
  private:
   QuicTime now_;
 
   DISALLOW_COPY_AND_ASSIGN(MockClock);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_MOCK_CLOCK_H_