Move renderable config list to GrDrawTargetCaps

src/gpu/GrDrawTargetCaps.h

Index: src/gpu/GrDrawTargetCaps.h
diff --git a/src/gpu/GrDrawTargetCaps.h b/src/gpu/GrDrawTargetCaps.h
index 111b35bf74e3af72be8999fa6b6b97790dc5aadb..11347e3cb64c4a2396b9e94054d365281ea846b9 100644
--- a/src/gpu/GrDrawTargetCaps.h
+++ b/src/gpu/GrDrawTargetCaps.h
@@ -7,6 +7,7 @@
  */
 
 #include "SkRefCnt.h"
+#include "GrTypes.h"
 
 #ifndef GrDrawTargetCaps_DEFINED
 #define GrDrawTargetCaps_DEFINED
@@ -43,6 +44,14 @@ public:
     // Will be 0 if MSAA is not supported
     int maxSampleCount() const { return fMaxSampleCount; }
 
+    /**
+     * Can the provided configuration act as a render target?
+     */
+    bool isConfigRenderable(GrPixelConfig config) const {
+        SkASSERT(kGrPixelConfigCnt > config);
+        return fConfigRenderSupport[config];
+    }
+
 protected:
     bool f8BitPaletteSupport        : 1;
     bool fNPOTTextureTileSupport    : 1;
@@ -61,6 +70,8 @@ protected:
     int fMaxTextureSize;
     int fMaxSampleCount;
 
+    bool fConfigRenderSupport[kGrPixelConfigCnt];
+
     typedef SkRefCnt INHERITED;
 };