Throttle rendering pipeline for invisible iframes

Source/core/frame/LocalFrame.cpp

Index: Source/core/frame/LocalFrame.cpp
diff --git a/Source/core/frame/LocalFrame.cpp b/Source/core/frame/LocalFrame.cpp
index 8951fe2f267717a56e37cff755ff3f4a80e0f8ab..13242712697a251ebe7ba219f4297445003ff411 100644
--- a/Source/core/frame/LocalFrame.cpp
+++ b/Source/core/frame/LocalFrame.cpp
@@ -837,6 +837,16 @@ String LocalFrame::localLayerTreeAsText(unsigned flags) const
     return contentLayoutObject()->compositor()->layerTreeAsText(static_cast<LayerTreeFlags>(flags));
 }
 
+bool LocalFrame::shouldThrottleRenderingPipeline() const
+{
+    return view() && view()->shouldThrottleRenderingPipeline();
+}
+
+bool LocalFrame::shouldThrottleStyleLayoutAndCompositingUpdates() const
+{
+    return view() && view()->shouldThrottleStyleLayoutAndCompositingUpdates();
+}
+
 inline LocalFrame::LocalFrame(FrameLoaderClient* client, FrameHost* host, FrameOwner* owner)
     : Frame(client, host, owner)
     , m_loader(this)