scheduler: Make virtual time expiration deterministic

third_party/WebKit/Source/web/InspectorEmulationAgent.cpp

Index: third_party/WebKit/Source/web/InspectorEmulationAgent.cpp
diff --git a/third_party/WebKit/Source/web/InspectorEmulationAgent.cpp b/third_party/WebKit/Source/web/InspectorEmulationAgent.cpp
index 0701c536186e1150d50181c150b94e6eb1a6126b..8ed4e45c51d6620d0698d30f86de8419e823550b 100644
--- a/third_party/WebKit/Source/web/InspectorEmulationAgent.cpp
+++ b/third_party/WebKit/Source/web/InspectorEmulationAgent.cpp
@@ -171,13 +171,12 @@ Response InspectorEmulationAgent::setVirtualTimePolicy(const String& policy,
   if (budget.isJust()) {
     RefPtr<WebTaskRunner> task_runner =
         Platform::Current()->CurrentThread()->GetWebTaskRunner();
-    long long delay_millis = static_cast<long long>(budget.fromJust());
-    virtual_time_budget_expired_task_handle_ =

[dgozman, 2017/04/24 17:10:30]

nit: remove the field.

[Sami, 2017/04/24 17:33:47]

Done!

-        task_runner->PostDelayedCancellableTask(
-            BLINK_FROM_HERE,
-            WTF::Bind(&InspectorEmulationAgent::VirtualTimeBudgetExpired,
-                      WrapWeakPersistent(this)),
-            delay_millis);
+    base::TimeDelta budget_amount = base::TimeDelta::FromMilliseconds(
+        budget.fromJust());
+    web_local_frame_impl_->View()->Scheduler()->GrantVirtualTimeBudget(
+        budget_amount,
+        WTF::Bind(&InspectorEmulationAgent::VirtualTimeBudgetExpired,
+                  WrapWeakPersistent(this)));
   }
   return Response::OK();
 }