Move memoization of multisample specs id to GrRenderTarget

src/gpu/gl/GrGLGpu.cpp

Index: src/gpu/gl/GrGLGpu.cpp
diff --git a/src/gpu/gl/GrGLGpu.cpp b/src/gpu/gl/GrGLGpu.cpp
index 485a9bd09a77242af65035fa1cac887cbe8dfcc7..454753c4e927d23fe7cd6a7a946a0e2c78d69226 100644
--- a/src/gpu/gl/GrGLGpu.cpp
+++ b/src/gpu/gl/GrGLGpu.cpp
@@ -4474,8 +4474,8 @@ bool GrGLGpu::generateMipmap(GrGLTexture* texture, bool gammaCorrect) {
     return true;
 }
 
-void GrGLGpu::onGetMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings& stencil,
-                                    int* effectiveSampleCnt, SamplePattern* samplePattern) {
+void GrGLGpu::onQueryMultisampleSpecs(GrRenderTarget* rt, const GrStencilSettings& stencil,
+                                      int* effectiveSampleCnt, SamplePattern* samplePattern) {
     SkASSERT(!rt->isMixedSampled() || rt->renderTargetPriv().getStencilAttachment() ||
              stencil.isDisabled());