Move memoization of multisample specs id to GrRenderTarget

src/gpu/gl/GrGLGpu.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLGpu_DEFINED
 #define GrGLGpu_DEFINED
 
@@ skipping 207 matching lines @@
                           GrPixelConfig config, GrBuffer* transferBuffer,
                           size_t offset, size_t rowBytes) override;
 
     void onResolveRenderTarget(GrRenderTarget* target) override;
 
     bool onCopySurface(GrSurface* dst,
                        GrSurface* src,
                        const SkIRect& srcRect,
                        const SkIPoint& dstPoint) override;
 
-    void onGetMultisampleSpecs(GrRenderTarget*, const GrStencilSettings&,
-                               int* effectiveSampleCnt, SamplePattern*) override;
+    void onQueryMultisampleSpecs(GrRenderTarget*, const GrStencilSettings&,
+                                 int* effectiveSampleCnt, SamplePattern*) override;
 
     // binds texture unit in GL
     void setTextureUnit(int unitIdx);
 
     void setTextureSwizzle(int unitIdx, GrGLenum target, const GrGLenum swizzle[]);
 
     // Flushes state from GrPipeline to GL. Returns false if the state couldn't be set.
     // willDrawPoints must be true if point primitives will be rendered after setting the GL state.
     bool flushGLState(const GrPipeline&, const GrPrimitiveProcessor&, bool willDrawPoints);
 
@@ skipping 403 matching lines @@
     bool fPLSHasBeenUsed;
 
     float fHWMinSampleShading;
 
     typedef GrGpu INHERITED;
     friend class GrGLPathRendering; // For accessing setTextureUnit.
     friend class gr_instanced::GLInstancedRendering; // For accessing flushGLState.
 };
 
 #endif