Throttle rendering pipeline for invisible iframes

components/test_runner/web_test_proxy.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/test_runner/web_test_proxy.h"
 
 #include <cctype>
 
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
@@ skipping 751 matching lines @@
   if (animate_scheduled_) {
     base::TimeDelta animate_time = base::TimeTicks::Now() - base::TimeTicks();
     base::TimeDelta interval = base::TimeDelta::FromMicroseconds(16666);
     blink::WebBeginFrameArgs args(animate_time.InSecondsF(),
                                   (animate_time + interval).InSecondsF(),
                                   interval.InSecondsF());
 
     animate_scheduled_ = false;
     web_widget_->beginFrame(args);
     web_widget_->layout();
+    web_widget_->didCommitCompositorFrame();
     if (blink::WebPagePopup* popup = web_widget_->pagePopup()) {
       popup->beginFrame(args);
       popup->layout();
+      popup->didCommitCompositorFrame();
     }
   }
 }
 
 void WebTestProxyBase::PostAccessibilityEvent(const blink::WebAXObject& obj,
                                               blink::WebAXEvent event) {
   // Only hook the accessibility events occured during the test run.
   // This check prevents false positives in WebLeakDetector.
   // The pending tasks in browser/renderer message queue may trigger
   // accessibility events,
@@ skipping 631 matching lines @@
   // to cancel the input method's ongoing composition session.
   if (web_widget_)
     web_widget_->confirmComposition();
 }
 
 blink::WebString WebTestProxyBase::acceptLanguages() {
   return blink::WebString::fromUTF8(accept_languages_);
 }
 
 }  // namespace test_runner