Implement support for mixed sampled render targets

src/gpu/GrTexture.cpp

Index: src/gpu/GrTexture.cpp
diff --git a/src/gpu/GrTexture.cpp b/src/gpu/GrTexture.cpp
index 33b8687017378d776e18867c6edceea4b4ce45a6..e954c5ee85bdde547c9082643c23db473cce6dbe 100644
--- a/src/gpu/GrTexture.cpp
+++ b/src/gpu/GrTexture.cpp
@@ -51,7 +51,7 @@ void GrTexture::validateDesc() const {
     if (this->asRenderTarget()) {
         // This texture has a render target
         SkASSERT(0 != (fDesc.fFlags & kRenderTarget_GrSurfaceFlag));
-        SkASSERT(fDesc.fSampleCnt == this->asRenderTarget()->numSamples());
+        SkASSERT(fDesc.fSampleCnt == this->asRenderTarget()->numColorSamples());
     } else {
         SkASSERT(0 == (fDesc.fFlags & kRenderTarget_GrSurfaceFlag));
         SkASSERT(0 == fDesc.fSampleCnt);