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 3c353cd186d56380367a5584bbf36e03c8226c7c..7f09312d3f4f2da0a007aad80801058fea85da4c 100644
--- a/Source/core/frame/LocalFrame.cpp
+++ b/Source/core/frame/LocalFrame.cpp
@@ -836,6 +836,20 @@ String LocalFrame::localLayerTreeAsText(unsigned flags) const
     return contentLayoutObject()->compositor()->layerTreeAsText(static_cast<LayerTreeFlags>(flags));
 }
 
+bool LocalFrame::shouldThrottleRenderingPipeline() const
+{
+    if (view())
+        return view()->shouldThrottleRenderingPipeline();

[esprehn, 2015/09/02 21:10:37]

return view() && view()->...;

[Sami, 2015/09/03 17:23:20]

Done.

+    return false;
+}
+
+bool LocalFrame::shouldThrottleStyleLayoutAndCompositingUpdates() const
+{
+    if (view())
+        return view()->shouldThrottleStyleLayoutAndCompositingUpdates();

[esprehn, 2015/09/02 21:10:37]

ditto

[Sami, 2015/09/03 17:23:20]

Done.

+    return false;
+}
+
 inline LocalFrame::LocalFrame(FrameLoaderClient* client, FrameHost* host, FrameOwner* owner)
     : Frame(client, host, owner)
     , m_loader(this)