Performance tests should use GCController.collectAll instead of GCController.collect

To make sure that (almost) all garbage is collected, it's better to use GCController.collectAll.

BUG=

Review URL: https://codereview.chromium.org/1359563002

git-svn-id: svn://svn.chromium.org/blink/trunk@202660 bbb929c8-8fbe-4397-9dbb-9b2b20218538
diff --git a/PerformanceTests/resources/runner.js b/PerformanceTests/resources/runner.js
index 0bd3cfa..11a0636 100644
--- a/PerformanceTests/resources/runner.js
+++ b/PerformanceTests/resources/runner.js
@@ -101,7 +101,7 @@
 
     PerfTestRunner.gc = function () {
         if (window.GCController)
-            window.GCController.collect();
+            window.GCController.collectAll();
         else {
             function gcRec(n) {
                 if (n < 1)