remove unused code and const-ify some methods

Change-Id: I4c8da0cdf39f31ec757e87687dcec79a4ac83681

vcl/inc/win/salgdi.h

@@ -194,14 +194,13 @@ public:
     HFONT                   ImplDoSetFont( FontSelectPattern* i_pFont, float& o_rFontScale, HFONT& o_rOldFont );
 
 public:
-    explicit WinSalGraphics();
     explicit WinSalGraphics(WinSalGraphics::Type eType, bool bScreen);
     virtual ~WinSalGraphics();
 
-    bool isPrinter();
-    bool isVirtualDevice();
-    bool isWindow();
-    bool isScreen();
+    bool isPrinter() const;
+    bool isVirtualDevice() const;
+    bool isWindow() const;
+    bool isScreen() const;
 
 protected:
     virtual bool        setClipRegion( const vcl::Region& );

vcl/win/source/gdi/salgdi.cxx

@@ -554,44 +554,6 @@ void ImplClearHDCCache( SalData* pData )
     }
 }
 
-WinSalGraphics::WinSalGraphics():
-    mpImpl(new WinSalGraphicsImpl(*this)),
-    mhLocalDC(0),
-    mbPrinter(false),
-    mbVirDev(false),
-    mbWindow(false),
-    mbScreen(false),
-    mfCurrentFontScale(1.0),
-    mhRegion(0),
-    mhDefPen(0),
-    mhDefBrush(0),
-    mhDefFont(0),
-    mhDefPal(0),
-    mpStdClipRgnData(NULL),
-    mpLogFont(NULL),
-    mpFontCharSets(NULL),
-    mpFontAttrCache(NULL),
-    mnFontCharSetCount(0),
-    mpFontKernPairs(NULL),
-    mnFontKernPairCount(0),
-    mbFontKernInit(false),
-    mnPenWidth(GSL_PEN_WIDTH)
-{
-    for( int i = 0; i < MAX_FALLBACK; ++i )
-    {
-        mhFonts[ i ] = 0;
-        mpWinFontData[ i ]  = NULL;
-        mpWinFontEntry[ i ] = NULL;
-        mfFontScale[ i ] = 1.0;
-    }
-
-    static const char* pEnv = getenv("USE_OPENGL");
-    if (pEnv)
-    {
-        mpImpl.reset(new OpenGLSalGraphicsImpl());
-    }
-}
-
 WinSalGraphics::WinSalGraphics(WinSalGraphics::Type eType, bool bScreen):
     mpImpl(new WinSalGraphicsImpl(*this)),
     mhLocalDC(0),
@@ -651,22 +613,22 @@ WinSalGraphics::~WinSalGraphics()
     delete mpFontKernPairs;
 }
 
-bool WinSalGraphics::isPrinter()
+bool WinSalGraphics::isPrinter() const
 {
     return mbPrinter;
 }
 
-bool WinSalGraphics::isVirtualDevice()
+bool WinSalGraphics::isVirtualDevice() const
 {
     return mbVirDev;
 }
 
-bool WinSalGraphics::isWindow()
+bool WinSalGraphics::isWindow() const
 {
     return mbWindow;
 }
 
-bool WinSalGraphics::isScreen()
+bool WinSalGraphics::isScreen() const
 {
     return mbScreen;
 }