diff --git a/third_party/chromium/base/time/time_posix.cc b/third_party/chromium/base/time/time_posix.cc
index b625af6..2825ce5 100644
--- a/third_party/chromium/base/time/time_posix.cc
+++ b/third_party/chromium/base/time/time_posix.cc
@@ -117,7 +117,7 @@
 //   => Thu Jan 01 00:00:00 UTC 1970
 //   irb(main):011:0> Time.at(-11644473600).getutc()
 //   => Mon Jan 01 00:00:00 UTC 1601
-static const int64 kWindowsEpochDeltaSeconds = INT64_C(11644473600);
+static const int64 kWindowsEpochDeltaSeconds = 11644473600ll;
 
 // static
 const int64 Time::kWindowsEpochDeltaMicroseconds =
diff --git a/third_party/chromium/base/time/time_unittest.cc b/third_party/chromium/base/time/time_unittest.cc
index 43373e7..508244a 100644
--- a/third_party/chromium/base/time/time_unittest.cc
+++ b/third_party/chromium/base/time/time_unittest.cc
@@ -584,7 +584,7 @@
   exploded.millisecond = 0;
   Time t = Time::FromUTCExploded(exploded);
   // Unix 1970 epoch.
-  EXPECT_EQ(INT64_C(11644473600000000), t.ToInternalValue());
+  EXPECT_EQ(11644473600000000ll, t.ToInternalValue());
 
   // We can't test 1601 epoch, since the system time functions on Linux
   // only compute years starting from 1900.