Use GCController.collectAll() in gc()

BUG=340522
NOTRY=true

Review URL: https://codereview.chromium.org/211623006

git-svn-id: svn://svn.chromium.org/blink/trunk@170014 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/LayoutTests/resources/js-test.js

@@ -651,7 +651,7 @@ function shouldHaveHadError(message)
 
 function gc() {
     if (typeof GCController !== "undefined")
-        GCController.collect();
+        GCController.collectAll();
     else {
         var gcRec = function (n) {
             if (n < 1)