Move Time, TimeDelta and TimeTicks into namespace base.

base/time.h

 // Copyright (c) 2006-2008 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.
 
 // Time represents an absolute point in time, internally represented as
 // microseconds (s/1,000,000) since a platform-dependent epoch.  Each
 // platform's epoch, along with other system-dependent clock interface
 // routines, is defined in time_PLATFORM.cc.
 //
 // TimeDelta represents a duration of time, internally represented in
@@ skipping 15 matching lines @@
 
 #include "base/basictypes.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 
 #if defined(OS_WIN)
 // For FILETIME in FromFileTime, until it moves to a new converter class.
 // See TODO(iyengar) below.
 #include <windows.h>
 #endif
 
+namespace base {
+
 class Time;
 class TimeTicks;
 
 // This unit test does a lot of manual time manipulation.
 class PageLoadTrackerUnitTest;
 
 // TimeDelta ------------------------------------------------------------------
 
 class TimeDelta {
  public:
@@ skipping 385 matching lines @@
 #if defined(OS_WIN)
   typedef DWORD (*TickFunctionType)(void);
   static TickFunctionType SetMockTickFunction(TickFunctionType ticker);
 #endif
 };
 
 inline TimeTicks TimeDelta::operator+(TimeTicks t) const {
   return TimeTicks(t.ticks_ + delta_);
 }
 
+}  // namespace base
+
 #endif  // BASE_TIME_H_