scheduler: Make virtual time expiration deterministic

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 286e78b33bdc14790491072c454d117704a4bb45..fcf8b12a5fb95f573a9cab2f213ecd74b47533c9 100644
--- a/content/browser/devtools/protocol/devtools_protocol_browsertest.cc
+++ b/content/browser/devtools/protocol/devtools_protocol_browsertest.cc
@@ -1379,18 +1379,17 @@ 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('before')}, 999);"
+                    "setTimeout(function(){console.log('at')}, 1000);"
+                    "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");
@@ -1411,7 +1410,7 @@ IN_PROC_BROWSER_TEST_F(DevToolsProtocolTest, VirtualTimeTest) {
 
   WaitForNotification("Emulation.virtualTimeBudgetExpired");
 
-  EXPECT_THAT(console_messages_, ElementsAre("before", "done", "after"));
+  EXPECT_THAT(console_messages_, ElementsAre("before", "done", "at", "after"));
 }
 
 // Tests that the Security.showCertificateViewer command shows the