Make blink platform time consistent with the timer virtual time

third_party/WebKit/Source/platform/heap/ThreadState.cpp

Index: third_party/WebKit/Source/platform/heap/ThreadState.cpp
diff --git a/third_party/WebKit/Source/platform/heap/ThreadState.cpp b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
index 75bbf58459e9967f9e40fa858b6447677f0887f7..9ad69b6a76d7143d461e7cd40a8339f4c8375f84 100644
--- a/third_party/WebKit/Source/platform/heap/ThreadState.cpp
+++ b/third_party/WebKit/Source/platform/heap/ThreadState.cpp
@@ -751,7 +751,7 @@ void ThreadState::performIdleGC(double deadlineSeconds)
     if (gcState() != IdleGCScheduled)
         return;
 
-    double idleDeltaInSeconds = deadlineSeconds - Platform::current()->monotonicallyIncreasingTime();
+    double idleDeltaInSeconds = deadlineSeconds - Platform::current()->monotonicallyIncreasingTimeSeconds();
     TRACE_EVENT2("blink_gc", "ThreadState::performIdleGC", "idleDeltaInSeconds", idleDeltaInSeconds, "estimatedMarkingTime", Heap::estimatedMarkingTime());
     if (idleDeltaInSeconds <= Heap::estimatedMarkingTime() && !Platform::current()->currentThread()->scheduler()->canExceedIdleDeadlineIfRequired()) {
         // If marking is estimated to take longer than the deadline and we can't
@@ -778,7 +778,7 @@ void ThreadState::performIdleLazySweep(double deadlineSeconds)
     if (sweepForbidden())
         return;
 
-    TRACE_EVENT1("blink_gc", "ThreadState::performIdleLazySweep", "idleDeltaInSeconds", deadlineSeconds - Platform::current()->monotonicallyIncreasingTime());
+    TRACE_EVENT1("blink_gc", "ThreadState::performIdleLazySweep", "idleDeltaInSeconds", deadlineSeconds - Platform::current()->monotonicallyIncreasingTimeSeconds());
 
     bool sweepCompleted = true;
     SweepForbiddenScope scope(this);
@@ -791,7 +791,7 @@ void ThreadState::performIdleLazySweep(double deadlineSeconds)
             // lazySweepWithDeadline() won't check the deadline until it sweeps
             // 10 pages. So we give a small slack for safety.
             double slack = 0.001;
-            double remainingBudget = deadlineSeconds - slack - Platform::current()->monotonicallyIncreasingTime();
+            double remainingBudget = deadlineSeconds - slack - Platform::current()->monotonicallyIncreasingTimeSeconds();
             if (remainingBudget <= 0 || !m_heaps[i]->lazySweepWithDeadline(deadlineSeconds)) {
                 // We couldn't finish the sweeping within the deadline.
                 // We request another idle task for the remaining sweeping.