1. The RenderViewImpl is created with IPC saying it is swapped out.

[1:1:1019/141814.347481:ERROR:render_widget.cc(1520)] RenderWidget swapped out 1 with id FrameSinkId(4, 2)

2. Then the RenderWidget is swapped in from RenderFrameImpl::DidCommitProvisionalLoad()

[1:1:1019/141814.369757:ERROR:render_widget.cc(499)] 0x1f40386d3c00 SetSwappedOut 0
#0 0x7f3dfd9269ef base::debug::StackTrace::StackTrace()
#1 0x7f3dfb610074 content::RenderWidget::SetSwappedOut()
#2 0x7f3dfb5ca618 content::RenderFrameImpl::SwapIn()
#3 0x7f3dfb5d8995 content::RenderFrameImpl::DidCommitProvisionalLoad()
#4 0x7f3df4d588ef blink::LocalFrameClientImpl::DispatchDidCommitLoad()
#5 0x7f3df541a4d5 blink::DocumentLoader::DidCommitNavigation()

3. This starts the compositor :( :(

[1:1:1019/141814.591968:ERROR:render_widget.cc(966)] 0x1f40386d3c00 RequestNewLayerTreeFrameSink FrameSinkId(4, 2)

4. And then we receive a FrameMsg_SwapOut message for the main frame, I guess, associated with that RenderWidget. We swap it back out again immediately.

[1:1:1019/141814.597238:ERROR:render_widget.cc(499)] 0x1f40386d3c00 SetSwappedOut 1
#0 0x7f3dfd9269ef base::debug::StackTrace::StackTrace()
#1 0x7f3dfb610074 content::RenderWidget::SetSwappedOut()
#2 0x7f3dfb5c28f5 content::RenderFrameImpl::OnSwapOut()
#3 0x7f3dfb5c268e _ZN3IPC8MessageTI21FrameMsg_SwapOut_MetaNSt3__15tupleIJibN7content21FrameReplicationStateEEEEvE8DispatchINS4_15RenderFrameImplES9_vMS9_FvibRKS5_EEEbPKNS_7MessageEPT_PT0_PT1_T2_
#4 0x7f3dfb5c1d90 content::RenderFrameImpl::OnMessageReceived()
#5 0x7f3dfbe6736f IPC::MessageRouter::RouteMessage()
#6 0x7f3dfbe672aa IPC::MessageRouter::OnMessageReceived()
#7 0x7f3dfa6bba1c content::ChildThreadImpl::OnMessageReceived()