Add direct getter for GrCaps to GrContext.

src/gpu/GrCoordTransform.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrCoordTransform.h"
 #include "GrCaps.h"
 #include "GrContext.h"
 #include "GrGpu.h"
 
 void GrCoordTransform::reset(GrCoordSet sourceCoords, const SkMatrix& m, const GrTexture* texture,
                              GrTextureParams::FilterMode filter) {
     SkASSERT(texture);
     SkASSERT(!fInProcessor);
 
     fSourceCoords = sourceCoords;
     fMatrix = m;
     fReverseY = kBottomLeft_GrSurfaceOrigin == texture->origin();
 
     // Always start at kDefault. Then if precisions differ we see if the precision needs to be
     // increased. Our rule is that we want at least 4 subpixel values in the representation for
     // coords between 0 to 1 when bi- or tri-lerping and 1 value when nearest filtering. Note that
     // this still might not be enough when drawing with repeat or mirror-repeat modes but that case
     // can be arbitrarily bad.
     int subPixelThresh = filter > GrTextureParams::kNone_FilterMode ? 4 : 1;
     fPrecision = kDefault_GrSLPrecision;
     if (texture->getContext()) {
-        const GrShaderCaps* caps = texture->getContext()->getGpu()->caps()->shaderCaps();
+        const GrShaderCaps* caps = texture->getContext()->caps()->shaderCaps();
         if (caps->floatPrecisionVaries()) {
             int maxD = SkTMax(texture->width(), texture->height());
             const GrShaderCaps::PrecisionInfo* info;
             info = &caps->getFloatShaderPrecisionInfo(kFragment_GrShaderType, fPrecision);
             do {
                 SkASSERT(info->supported());
                 // Make sure there is at least 2 bits of subpixel precision in the range of
                 // texture coords from 0.5 to 1.0.
                 if ((2 << info->fBits) / maxD > subPixelThresh) {
                     break;
@@ skipping 14 matching lines @@
 
 void GrCoordTransform::reset(GrCoordSet sourceCoords,
                              const SkMatrix& m,
                              GrSLPrecision precision) {
     SkASSERT(!fInProcessor);
     fSourceCoords = sourceCoords;
     fMatrix = m;
     fReverseY = false;
     fPrecision = precision;
 }