Add SkSurface factory for wrapping an FBO in SkSurface

src/image/SkSurface.cpp

Index: src/image/SkSurface.cpp
diff --git a/src/image/SkSurface.cpp b/src/image/SkSurface.cpp
index 34035a36708bbd82ccd4979ab77b28f115cf7e78..35409be8105f15f7be0d1d2e97152d139ebad4af 100644
--- a/src/image/SkSurface.cpp
+++ b/src/image/SkSurface.cpp
@@ -192,9 +192,14 @@ SkSurface* SkSurface::NewRenderTarget(GrContext*, Budgeted, const SkImageInfo&,
     return NULL;
 }
 
-SkSurface* SkSurface::NewWrappedRenderTarget(GrContext*, GrBackendTextureDesc,
+SkSurface* SkSurface::NewFromBackendTexture(GrContext*, const GrBackendTextureDesc&,
                                              const SkSurfaceProps*) {
     return NULL;
 }
 
+SkSurface* SkSurface::NewFromBackendRenderTarget(GrContext*, const GrBackendRenderTargetDesc&,
+                                                 const SkSurfaceProps*) {
+    return NULL;
+}
+
 #endif