Replaces instances of the deprecated TimeTicks::HighResNow() with TimeTicks::Now().

base/time/time_posix.cc

Index: base/time/time_posix.cc
diff --git a/base/time/time_posix.cc b/base/time/time_posix.cc
index 34b2f5ac39aff28ca34f3940f9e1b5151029d0c9..8b207eb36a9d54ca7f6c3420c42b5755ac100921 100644
--- a/base/time/time_posix.cc
+++ b/base/time/time_posix.cc
@@ -338,7 +338,7 @@ TimeTicks TimeTicks::NowFromSystemTraceTime() {
   struct timespec ts;
   if (clock_gettime(kClockSystemTrace, &ts) != 0) {
     // NB: fall-back for a chrome os build running on linux
-    return HighResNow();
+    return Now();
   }
 
   absolute_micro =
@@ -352,7 +352,7 @@ TimeTicks TimeTicks::NowFromSystemTraceTime() {
 
 // static
 TimeTicks TimeTicks::NowFromSystemTraceTime() {
-  return HighResNow();
+  return Now();
 }
 
 #endif  // defined(OS_CHROMEOS)