Throttle rendering pipeline for invisible iframes

Source/core/paint/DisplayItemListPaintTest.cpp

 // 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 "config.h"
 #include "platform/graphics/paint/DisplayItemList.h"
 
 #include "core/layout/LayoutTestHelper.h"
 #include "core/layout/LayoutText.h"
 #include "core/layout/LayoutView.h"
@@ skipping 52 matching lines @@
         , m_originalSlimmingPaintV2Enabled(RuntimeEnabledFeatures::slimmingPaintV2Enabled()) { }
 
 protected:
     LayoutView& layoutView() { return *m_layoutView; }
     DisplayItemList& rootDisplayItemList() { return *layoutView().layer()->graphicsLayerBacking()->displayItemList(); }
     const DisplayItems& newDisplayItemsBeforeUpdate() { return rootDisplayItemList().m_newDisplayItems; }
 
     // Expose some document lifecycle steps for checking new display items before commiting.
     void updateLifecyclePhasesToPaintForSlimmingPaintV2Clean()
     {
-        document().view()->updateLifecyclePhasesInternal(FrameView::OnlyUpToCompositingCleanPlusScrolling);
+        document().view()->updateLifecyclePhasesInternal(FrameView::OnlyUpToCompositingCleanPlusScrolling, DocumentLifecycle::ThrottlingMode::Disallow);
         document().view()->invalidateTreeIfNeededRecursive();
         document().view()->paintForSlimmingPaintV2();
     }
     void compositeForSlimmingPaintV2() { document().view()->compositeForSlimmingPaintV2(); }
 
 private:
     void SetUp() override
     {
         ASSERT_TRUE(RuntimeEnabledFeatures::slimmingPaintEnabled());
         RuntimeEnabledFeatures::setSlimmingPaintV2Enabled(true);
@@ skipping 250 matching lines @@
         TestDisplayItem(content1, DisplayItem::BoxDecorationBackground),
         TestDisplayItem(container1Layer, DisplayItem::EndSubsequence),
         TestDisplayItem(container2Layer, DisplayItem::BeginSubsequence),
         TestDisplayItem(container2, DisplayItem::BoxDecorationBackground),
         TestDisplayItem(content2, DisplayItem::BoxDecorationBackground),
         TestDisplayItem(container2Layer, DisplayItem::EndSubsequence),
         TestDisplayItem(htmlLayer, DisplayItem::EndSubsequence));
 }
 
 } // namespace blink