Implement support for mixed sampled render targets

src/gpu/GrBlurUtils.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrBlurUtils.h"
 #include "GrDrawContext.h"
 #include "GrCaps.h"
@@ skipping 241 matching lines @@
                 // left to do.
                 return;
             }
 
 
             SkAutoTUnref<GrTexture> mask(create_mask_GPU(context,
                                                          maskRect,
                                                          *devPathPtr,
                                                          strokeInfo,
                                                          grPaint.isAntiAlias(),
-                                                         renderTarget->numSamples()));
+                                                         renderTarget->numColorSamples()));
             if (mask) {
                 GrTexture* filtered;
 
                 if (paint.getMaskFilter()->filterMaskGPU(mask, viewMatrix, maskRect,
                                                          &filtered, true)) {
                     // filterMaskGPU gives us ownership of a ref to the result
                     SkAutoTUnref<GrTexture> atu(filtered);
                     if (draw_mask(drawContext,
                                   renderTarget,
                                   clip,
@@ skipping 14 matching lines @@
                                                               SkPaint::kFill_Style;
         draw_with_mask_filter(drawContext, context->textureProvider(), renderTarget,
                               clip, viewMatrix, *devPathPtr,
                               paint.getMaskFilter(), clipBounds, &grPaint, style);
         return;
     }
 
     drawContext->drawPath(renderTarget, clip, grPaint, viewMatrix, *pathPtr, strokeInfo);
 }