Revert unfinished work of "full-frame-measurement"

third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html

Index: third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html
diff --git a/third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html b/third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html
index 7fc6a46f46b86a45827508076de8f240a84caf8c..918ef4aab80fa79efe79effef6d47c52ba21dac4 100644
--- a/third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html
+++ b/third_party/WebKit/PerformanceTests/Layout/fixed-grid-lots-of-data.html
@@ -21,14 +21,14 @@ body {
 <script src="../resources/runner.js"></script>
 <script>
 function startTest() {
-    PerfTestRunner.forceLayoutOrFullFrame();
+    PerfTestRunner.forceLayout();
 
     var index = 0;
     PerfTestRunner.measureRunsPerSecond({
         description: "Measures performance of layout on a page using CSS grid layout (fixed).",
         run: function() {
             document.body.style.width = ++index % 2 ? "99%" : "98%";
-            PerfTestRunner.forceLayoutOrFullFrame();
+            PerfTestRunner.forceLayout();
         }
     });
 }