Enable V8 idle notification after commit.

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 57f0ca05b23ac92f22a2fd7bdd43c554f2601027..f32fcbbc16fd1c2233428560aa21175b655c662d 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -423,11 +423,13 @@ RenderWidgetCompositor::RenderWidgetCompositor(RenderWidget* widget,
                                                bool threaded)
     : threaded_(threaded),
       widget_(widget),
-      send_v8_idle_notification_after_commit_(false) {
+      send_v8_idle_notification_after_commit_(true) {
   CommandLine* cmd = CommandLine::ForCurrentProcess();
 
-  if (cmd->HasSwitch(switches::kSendV8IdleNotificationAfterCommit))
+  if (cmd->HasSwitch(switches::kEnableV8IdleNotificationAfterCommit))
     send_v8_idle_notification_after_commit_ = true;
+  if (cmd->HasSwitch(switches::kDisableV8IdleNotificationAfterCommit))
+    send_v8_idle_notification_after_commit_ = false;
 }
 
 RenderWidgetCompositor::~RenderWidgetCompositor() {}