Add a space before seconds units like all other units.

base/time/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.
 
 #include "base/time/time.h"
 
 #include <stdint.h>
 #include <time.h>
 #include <limits>
 #include <string>
@@ skipping 1098 matching lines @@
   EXPECT_EQ(-one_second, (ticks_now - one_second) - ticks_now);
   EXPECT_EQ(one_second, (ticks_now + one_second) - ticks_now);
 }
 
 TEST(TimeDeltaLogging, DCheckEqCompiles) {
   DCHECK_EQ(TimeDelta(), TimeDelta());
 }
 
 TEST(TimeDeltaLogging, EmptyIsZero) {
   TimeDelta zero;
-  EXPECT_EQ("0s", AnyToString(zero));
+  EXPECT_EQ("0 s", AnyToString(zero));
 }
 
 TEST(TimeDeltaLogging, FiveHundredMs) {
   TimeDelta five_hundred_ms = TimeDelta::FromMilliseconds(500);
-  EXPECT_EQ("0.5s", AnyToString(five_hundred_ms));
+  EXPECT_EQ("0.5 s", AnyToString(five_hundred_ms));
 }
 
 TEST(TimeDeltaLogging, MinusTenSeconds) {
   TimeDelta minus_ten_seconds = TimeDelta::FromSeconds(-10);
-  EXPECT_EQ("-10s", AnyToString(minus_ten_seconds));
+  EXPECT_EQ("-10 s", AnyToString(minus_ten_seconds));
 }
 
 TEST(TimeDeltaLogging, DoesNotMessUpFormattingFlags) {
   std::ostringstream oss;
   std::ios_base::fmtflags flags_before = oss.flags();
   oss << TimeDelta();
   EXPECT_EQ(flags_before, oss.flags());
 }
 
 TEST(TimeDeltaLogging, DoesNotMakeStreamBad) {
@@ skipping 50 matching lines @@
 
 TEST(TimeTicksLogging, DoesNotMakeStreamBad) {
   std::ostringstream oss;
   oss << TimeTicks();
   EXPECT_TRUE(oss.good());
 }
 
 }  // namespace
 
 }  // namespace base