From d7050c24980a7f426af579818a8ac06ff916d80e Mon Sep 17 00:00:00 2001
From: Rafael Weinstein <rafaelw@chromium.org>
Date: Fri, 14 Mar 2014 10:54:28 -0600
Subject: [PATCH] fix benchmarks

R=arv
BUG=

Review URL: https://codereview.appspot.com/76130043
---
 benchmark/d8_benchmarks.js |  8 +-------
 src/observe.js             | 11 +++++++++--
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/benchmark/d8_benchmarks.js b/benchmark/d8_benchmarks.js
index 6cb93f1..9f131ae 100644
--- a/benchmark/d8_benchmarks.js
+++ b/benchmark/d8_benchmarks.js
@@ -12,13 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-/*
-  This is a harness so that the ChangeSummary benchmarks can be run and profiled
-  using V8's d8 shell. Doing requires modifying V8's src/object-observe.js to
-  expose full delivery of all pending changes to observers via
-  Object.deliverAllChangesRecords(). This is *not* a part of the spec and is
-  just a hack to allow profiling the benchmarks from d8.
-*/
+// Flags: --allow-natives-syntax
 
 var console = {
   log: print
diff --git a/src/observe.js b/src/observe.js
index a797263..867744c 100644
--- a/src/observe.js
+++ b/src/observe.js
@@ -621,7 +621,14 @@
 
   var runningMicrotaskCheckpoint = false;
 
-  var hasDebugForceFullDelivery = typeof Object.deliverAllChangeRecords == 'function';
+  var hasDebugForceFullDelivery = hasObserve && (function() {
+    try {
+      eval('%RunMicrotasks()');
+      return true;
+    } catch (ex) {
+      return false;
+    }
+  })();
 
   global.Platform = global.Platform || {};
 
@@ -630,7 +637,7 @@
       return;
 
     if (hasDebugForceFullDelivery) {
-      Object.deliverAllChangeRecords();
+      eval('%RunMicrotasks()');
       return;
     }