Cleanup: Replace 'DurationInt' with int32, and always use 32-bit integers for tracking time.

base/profiler/tracked_time_unittest.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.
 
 // Test of classes in tracked_time.cc
 
 #include "base/profiler/tracked_time.h"
 #include "base/time.h"
 #include "base/tracked_objects.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 10 matching lines @@
       Duration::FromMilliseconds(kSomeMilliseconds);
   EXPECT_EQ(kSomeMilliseconds, (some - TrackedTime()).InMilliseconds());
   EXPECT_FALSE(some.is_null());
 
   // Now create a big time, to check that it is wrapped modulo 2^32.
   base::TimeTicks big = base::TimeTicks() +
       base::TimeDelta::FromMilliseconds(kReallyBigMilliseconds);
   EXPECT_EQ(kReallyBigMilliseconds, (big - base::TimeTicks()).InMilliseconds());
 
   TrackedTime wrapped_big(big);
-#if defined(USE_FAST_TIME_CLASS_FOR_DURATION_CALCULATIONS)
   // Expect wrapping at 32 bits.
   EXPECT_EQ(kSomeMilliseconds, (wrapped_big - TrackedTime()).InMilliseconds());
-#else  // !USE_FAST_TIME_CLASS_FOR_DURATION_CALCULATIONS)
-  // Expect no wrapping at 32 bits.
-  EXPECT_EQ(kReallyBigMilliseconds,
-            (wrapped_big - TrackedTime()).InMilliseconds());
-#endif  // USE_FAST_TIME_CLASS_FOR_DURATION_CALCULATIONS)
 }
 
 TEST(TrackedTimeTest, TrackedTimerDuration) {
   int kFirstMilliseconds = 793;
   int kSecondMilliseconds = 14889;
 
   Duration first = Duration::FromMilliseconds(kFirstMilliseconds);
   Duration second = Duration::FromMilliseconds(kSecondMilliseconds);
 
   EXPECT_EQ(kFirstMilliseconds, first.InMilliseconds());
@@ skipping 58 matching lines @@
   EXPECT_FALSE(ticks_after.is_null());
 
   // Now make sure that we bracketed our tracked time nicely.
   Duration before = now - TrackedTime(ticks_before);
   EXPECT_LE(0, before.InMilliseconds());
   Duration after = now - TrackedTime(ticks_after);
   EXPECT_GE(0, after.InMilliseconds());
 }
 
 }  // namespace tracked_objects