COMP: Fix Charts warnings "default constructor could not be generated".
COMP: Fix Charts warnings "default constructor could not be generated".

Change-Id: I409a634a1a32dd451ce14e2f0183b64ed3b2d950

collects/VTK,ashray/VTK-EVM,demarle/VTK,gram526/VTK,hendradarwin/VTK,hendradarwin/VTK,SimVascular/VTK,gram526/VTK,sankhesh/VTK,biddisco/VTK,aashish24/VTK-old,cjh1/VTK,msmolens/VTK,jmerkow/VTK,keithroe/vtkoptix,sumedhasingla/VTK,johnkit/vtk-dev,sankhesh/VTK,msmolens/VTK,keithroe/vtkoptix,cjh1/VTK,biddisco/VTK,candy7393/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,johnkit/vtk-dev,jmerkow/VTK,mspark93/VTK,sankhesh/VTK,keithroe/vtkoptix,mspark93/VTK,sankhesh/VTK,sumedhasingla/VTK,msmolens/VTK,ashray/VTK-EVM,candy7393/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,SimVascular/VTK,sumedhasingla/VTK,candy7393/VTK,candy7393/VTK,collects/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,mspark93/VTK,sankhesh/VTK,keithroe/vtkoptix,aashish24/VTK-old,aashish24/VTK-old,aashish24/VTK-old,biddisco/VTK,biddisco/VTK,ashray/VTK-EVM,cjh1/VTK,ashray/VTK-EVM,msmolens/VTK,msmolens/VTK,spthaolt/VTK,sankhesh/VTK,SimVascular/VTK,demarle/VTK,gram526/VTK,collects/VTK,biddisco/VTK,ashray/VTK-EVM,johnkit/vtk-dev,ashray/VTK-EVM,jmerkow/VTK,hendradarwin/VTK,cjh1/VTK,sumedhasingla/VTK,candy7393/VTK,johnkit/vtk-dev,johnkit/vtk-dev,ashray/VTK-EVM,gram526/VTK,SimVascular/VTK,gram526/VTK,sankhesh/VTK,msmolens/VTK,demarle/VTK,cjh1/VTK,keithroe/vtkoptix,sumedhasingla/VTK,sumedhasingla/VTK,gram526/VTK,demarle/VTK,candy7393/VTK,jmerkow/VTK,sumedhasingla/VTK,candy7393/VTK,gram526/VTK,keithroe/vtkoptix,jmerkow/VTK,berendkleinhaneveld/VTK,hendradarwin/VTK,biddisco/VTK,jmerkow/VTK,ashray/VTK-EVM,hendradarwin/VTK,aashish24/VTK-old,demarle/VTK,sumedhasingla/VTK,hendradarwin/VTK,cjh1/VTK,berendkleinhaneveld/VTK,mspark93/VTK,SimVascular/VTK,candy7393/VTK,mspark93/VTK,gram526/VTK,SimVascular/VTK,msmolens/VTK,jmerkow/VTK,mspark93/VTK,keithroe/vtkoptix,johnkit/vtk-dev,demarle/VTK,collects/VTK,jmerkow/VTK,spthaolt/VTK,collects/VTK,hendradarwin/VTK,mspark93/VTK,SimVascular/VTK,keithroe/vtkoptix,spthaolt/VTK,sankhesh/VTK,berendkleinhaneveld/VTK,spthaolt/VTK,mspark93/VTK,collects/VTK,msmolens/VTK,johnkit/vtk-dev,aashish24/VTK-old,spthaolt/VTK,demarle/VTK,biddisco/VTK,demarle/VTK,berendkleinhaneveld/VTK