Fixit: Split base::TimeTicks --> TimeTicks + ThreadTicks + TraceTicks

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index cdac32f76608e2a203e73d986b387f14d81274d7..36f020cfe4a593344183c072ab4ceae15a8cc9c7 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -626,8 +626,8 @@ blink::Platform::TraceEventHandle BlinkPlatformImpl::addTraceEvent(
     const unsigned char* arg_types,
     const unsigned long long* arg_values,
     unsigned char flags) {
-  base::TimeTicks timestamp_tt = base::TimeTicks::FromInternalValue(
-      static_cast<int64>(timestamp * base::Time::kMicrosecondsPerSecond));
+  base::TraceTicks timestamp_tt =
+      base::TraceTicks() + base::TimeDelta::FromSecondsD(timestamp);
   base::trace_event::TraceEventHandle handle =
       TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_THREAD_ID_AND_TIMESTAMP(
           phase, category_group_enabled, name, id,
@@ -668,8 +668,8 @@ blink::Platform::TraceEventHandle BlinkPlatformImpl::addTraceEvent(
       }
     }
   }
-  base::TimeTicks timestamp_tt = base::TimeTicks::FromInternalValue(
-      static_cast<int64>(timestamp * base::Time::kMicrosecondsPerSecond));
+  base::TraceTicks timestamp_tt =
+      base::TraceTicks() + base::TimeDelta::FromSecondsD(timestamp);
   base::trace_event::TraceEventHandle handle =
       TRACE_EVENT_API_ADD_TRACE_EVENT_WITH_THREAD_ID_AND_TIMESTAMP(phase,
                                       category_group_enabled,
@@ -1058,8 +1058,7 @@ double BlinkPlatformImpl::monotonicallyIncreasingTime() {
 }
 
 double BlinkPlatformImpl::systemTraceTime() {
-  return base::TimeTicks::NowFromSystemTraceTime().ToInternalValue() /
-      static_cast<double>(base::Time::kMicrosecondsPerSecond);
+  return (base::TraceTicks::Now() - base::TraceTicks()).InSecondsF();
 }
 
 void BlinkPlatformImpl::cryptographicallyRandomValues(