Made BeOS use the nsRenderingContextImpl class as the gtk builds do.

gfx/src/beos/nsGfxFactoryBeOS.cpp

@@ -20,7 +20,6 @@
  * Contributor(s): 
  */
 
-#include "nscore.h"
 #include "nsIFactory.h"
 #include "nsISupports.h"
 #include "nsGfxCIID.h"
@@ -44,7 +43,6 @@ static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
 static NS_DEFINE_IID(kCDeviceContextSpec, NS_DEVICE_CONTEXT_SPEC_CID);
 static NS_DEFINE_IID(kCDeviceContextSpecFactory, NS_DEVICE_CONTEXT_SPEC_FACTORY_CID); 
 
-
 class nsGfxFactoryBeOS : public nsIFactory
 {   
   public:   

gfx/src/beos/nsRenderingContextBeOS.h

@@ -23,7 +23,7 @@
 #ifndef nsRenderingContextBeOS_h___
 #define nsRenderingContextBeOS_h___
 
-#include "nsIRenderingContext.h"
+#include "nsRenderingContextImpl.h"
 #include "nsUnitConversion.h"
 #include "nsFont.h"
 #include "nsIFontMetrics.h"
@@ -40,7 +40,7 @@
 #include "nsDrawingSurfaceBeOS.h"
 #include "nsRegionBeOS.h"
 
-class nsRenderingContextBeOS : public nsIRenderingContext
+class nsRenderingContextBeOS : public nsRenderingContextImpl
 {
 public:
   nsRenderingContextBeOS();