Bug 1141089 - Remove unused DisplayItemData copy constructor. r=roc

--HG--
extra : rebase_source : 50f0d21ccd6fdac5769caeebf8ec95a2d7174d2d

layout/base/FrameLayerBuilder.cpp

@@ -61,23 +61,6 @@ FrameLayerBuilder::DisplayItemData::DisplayItemData(LayerManagerData* aParent, u
   }
 }
 
-FrameLayerBuilder::DisplayItemData::DisplayItemData(DisplayItemData &toCopy)
-{
-  // This isn't actually a copy-constructor; notice that it steals toCopy's
-  // mGeometry pointer.  Be careful.
-  mParent = toCopy.mParent;
-  mLayer = toCopy.mLayer;
-  mInactiveManager = toCopy.mInactiveManager;
-  mFrameList = toCopy.mFrameList;
-  mGeometry = toCopy.mGeometry;
-  mDisplayItemKey = toCopy.mDisplayItemKey;
-  mClip = toCopy.mClip;
-  mContainerLayerGeneration = toCopy.mContainerLayerGeneration;
-  mLayerState = toCopy.mLayerState;
-  mItem = toCopy.mItem;
-  mUsed = toCopy.mUsed;
-}
-
 void
 FrameLayerBuilder::DisplayItemData::AddFrame(nsIFrame* aFrame)
 {

layout/base/FrameLayerBuilder.h

@@ -448,7 +448,6 @@ public:
                     uint32_t aKey,
                     Layer* aLayer,
                     nsIFrame* aFrame = nullptr);
-    DisplayItemData(DisplayItemData &toCopy);
 
     /**
      * Removes any references to this object from frames