Add support for using glCopyTexSubImage2D when possible to copy surfaces.
Review URL: https://codereview.chromium.org/13915011

git-svn-id: http://skia.googlecode.com/svn/trunk@8675 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrInOrderDrawBuffer.cpp b/src/gpu/GrInOrderDrawBuffer.cpp
index 481a395..7bd3f5d 100644
--- a/src/gpu/GrInOrderDrawBuffer.cpp
+++ b/src/gpu/GrInOrderDrawBuffer.cpp
@@ -540,6 +540,10 @@
     return fDstGpu->canCopySurface(dst, src, srcRect, dstPoint);
 }
 
+void GrInOrderDrawBuffer::initCopySurfaceDstDesc(const GrSurface* src, GrTextureDesc* desc) {
+    fDstGpu->initCopySurfaceDstDesc(src, desc);
+}
+
 void GrInOrderDrawBuffer::willReserveVertexAndIndexSpace(
                                 int vertexCount,
                                 int indexCount) {