Add performance tests for full frame cycle

third_party/WebKit/LayoutTests/fast/harness/perftests/measure-frame-time.html

+<script src="../../../../PerformanceTests/resources/runner.js"></script>
+<script>
+// The initial value doesn't affect result.
+var virtualTime = 123456;
+PerfTestRunner.now = function () { return virtualTime; }
+
+var originalRequestAnimationFrame = window.requestAnimationFrame;
+window.requestAnimationFrame = function(f) {
+  // This time is part of the result.
+  virtualTime += 10;
+  originalRequestAnimationFrame(f);
+};
+
+PerfTestRunner.measureFrameTime({
+  run: function () {
+    // This time is part of the result.
+    virtualTime += 20;
+  },
+  warmUpCount: 3,
+  doNotMeasureMemoryUsage: true,
+});
+</script>