scheduler: Maintain a constant enqueue order for every task

content/browser/devtools/protocol/devtools_protocol_browsertest.cc

Index: content/browser/devtools/protocol/devtools_protocol_browsertest.cc
diff --git a/content/browser/devtools/protocol/devtools_protocol_browsertest.cc b/content/browser/devtools/protocol/devtools_protocol_browsertest.cc
index 1152b6690cee033bacbcd9a21d44fd4ce58f4b7f..225d1197d268fe79dde146e0c23ab72f8e5a0e57 100644
--- a/content/browser/devtools/protocol/devtools_protocol_browsertest.cc
+++ b/content/browser/devtools/protocol/devtools_protocol_browsertest.cc
@@ -1367,18 +1367,16 @@ IN_PROC_BROWSER_TEST_F(DevToolsProtocolTest, VirtualTimeTest) {
   params->SetString("policy", "pause");
   SendCommand("Emulation.setVirtualTimePolicy", std::move(params), true);
 
-  // TODO(scheduler-dev): Revisit timing when we have strict ordering
-  // guarantees.
   params.reset(new base::DictionaryValue());
   params->SetString("expression",
                     "setTimeout(function(){console.log('before')}, 1000);"
-                    "setTimeout(function(){console.log('after')}, 1002);");
+                    "setTimeout(function(){console.log('after')}, 1001);");
   SendCommand("Runtime.evaluate", std::move(params), true);
 
   // Let virtual time advance for one second.
   params.reset(new base::DictionaryValue());
   params->SetString("policy", "advance");
-  params->SetInteger("budget", 1001);
+  params->SetInteger("budget", 1000);
   SendCommand("Emulation.setVirtualTimePolicy", std::move(params), true);
 
   WaitForNotification("Emulation.virtualTimeBudgetExpired");