Don't composite layers with an invisible frameview.

third_party/WebKit/Source/core/layout/compositing/CompositingLayerAssigner.cpp

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 #include "core/layout/compositing/CompositingLayerAssigner.h"
 
+#include "core/frame/FrameView.h"

[chrishtr, 2016/01/28 00:32:31]

Remove

[wkorman, 2016/01/28 00:55:21]

Done.

 #include "core/inspector/InspectorTraceEvents.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/compositing/CompositedLayerMapping.h"
 #include "core/page/Page.h"
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "platform/TraceEvent.h"
 
 namespace blink {
 
 // We will only allow squashing if the bbox-area:squashed-area doesn't exceed
@@ skipping 264 matching lines @@
 
     PaintLayerStackingNodeIterator iterator(*layer->stackingNode(), NormalFlowChildren | PositiveZOrderChildren);
     while (PaintLayerStackingNode* curNode = iterator.next())
         assignLayersToBackingsInternal(curNode->layer(), squashingState, layersNeedingPaintInvalidation);
 
     if (squashingState.hasMostRecentMapping && &squashingState.mostRecentMapping->owningLayer() == layer)
         squashingState.haveAssignedBackingsToEntireSquashingLayerSubtree = true;
 }
 
 } // namespace blink