Change QuicWallTime to have microsecond granularity.

net/tools/quic/quic_epoll_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_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_
 #define NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "net/quic/quic_clock.h"
@@ skipping 12 matching lines @@
   explicit QuicEpollClock(EpollServer* epoll_server);
   ~QuicEpollClock() override;
 
   // Returns the approximate current time as a QuicTime object.
   QuicTime ApproximateNow() const override;
 
   // Returns the current time as a QuicTime object.
   // Note: this use significant resources please use only if needed.
   QuicTime Now() const override;
 
+  // Returns the current time as a QuicTime object.
+  // Note: this use significant resources please use only if needed.

[ramant (doing other things), 2015/11/03 00:33:10]

overly nit: "this use" -> "this uses"?

[Ryan Hamilton, 2015/11/04 04:10:11]

Done.

+  QuicWallTime WallNow() const override;
+
  protected:
   EpollServer* epoll_server_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicEpollClock);
 };
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_TOOLS_QUIC_QUIC_EPOLL_CLOCK_H_