Implement support for mixed sampled render targets

src/gpu/gl/GrGLRenderTarget.cpp

Index: src/gpu/gl/GrGLRenderTarget.cpp
diff --git a/src/gpu/gl/GrGLRenderTarget.cpp b/src/gpu/gl/GrGLRenderTarget.cpp
index c9e65d4fabda77d690fb748a2043c6d177c48fac..a89022e27cc3454dfc2c0b9ff21f251a01cecd4c 100644
--- a/src/gpu/gl/GrGLRenderTarget.cpp
+++ b/src/gpu/gl/GrGLRenderTarget.cpp
@@ -15,7 +15,7 @@
 // Because this class is virtually derived from GrSurface we must explicitly call its constructor.
 GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc)
     : GrSurface(gpu, idDesc.fLifeCycle, desc)
-    , INHERITED(gpu, idDesc.fLifeCycle, desc) {
+    , INHERITED(gpu, idDesc.fLifeCycle, desc, idDesc.fSampleConfig) {
     this->init(desc, idDesc);
     this->registerWithCache();
 }
@@ -23,7 +23,7 @@ GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc, cons
 GrGLRenderTarget::GrGLRenderTarget(GrGLGpu* gpu, const GrSurfaceDesc& desc, const IDDesc& idDesc,
                                    Derived)
     : GrSurface(gpu, idDesc.fLifeCycle, desc)
-    , INHERITED(gpu, idDesc.fLifeCycle, desc) {
+    , INHERITED(gpu, idDesc.fLifeCycle, desc, idDesc.fSampleConfig) {
     this->init(desc, idDesc);
 }