DevTools: improve test infrastructure w/ devtools driving the test

third_party/WebKit/Source/devtools/front_end/timer/Timer.js

Index: third_party/WebKit/Source/devtools/front_end/timer/Timer.js
diff --git a/third_party/WebKit/Source/devtools/front_end/timer/Timer.js b/third_party/WebKit/Source/devtools/front_end/timer/Timer.js
new file mode 100644
index 0000000000000000000000000000000000000000..9ae0904c80cd9f3cbf0f6ec861cc25ae1d8074e3
--- /dev/null
+++ b/third_party/WebKit/Source/devtools/front_end/timer/Timer.js
@@ -0,0 +1,17 @@
+/**
+ * @param {string} label
+ */
+Timer.time = function(label) {

[dgozman, 2017/03/10 00:17:17]

Just add a helper in Main.js for now?

+  if (Host.isUnderTest())
+    return;
+  console.time(label);
+};
+
+/**
+ * @param {string} label
+ */
+Timer.timeEnd = function(label) {
+  if (Host.isUnderTest())
+    return;
+  console.timeEnd(label);
+};