Moving net/tools/quic code to net::tools namspace

net/tools/quic/quic_epoll_clock.h

Index: net/tools/quic/quic_epoll_clock.h
diff --git a/net/tools/quic/quic_epoll_clock.h b/net/tools/quic/quic_epoll_clock.h
index a867e87ccedeb4401930f72c4f7006fa344e3f0b..476910acb79219e4b9aa7451b204b6b9978ac044 100644
--- a/net/tools/quic/quic_epoll_clock.h
+++ b/net/tools/quic/quic_epoll_clock.h
@@ -13,6 +13,8 @@ namespace net {
 
 class EpollServer;
 
+namespace tools {
+
 // Clock to efficiently retrieve an approximately accurate time from an
 // EpollServer.
 class QuicEpollClock : public QuicClock {
@@ -36,6 +38,7 @@ class QuicEpollClock : public QuicClock {
   EpollServer* epoll_server_;
 };
 
+}  // namespace tools
 }  // namespace net
 
 #endif  // GFE_QUIC_QUIC_EPOLL_CLOCK_H_