Add direct getter for GrCaps to GrContext.

src/gpu/GrAtlasTextContext.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 "GrAtlasTextContext.h"
 
 #include "GrBatch.h"
 #include "GrBatchFontCache.h"
@@ skipping 442 matching lines @@
     }
 
     if (!fEnableDFRendering && !skPaint.isDistanceFieldTextTEMP() &&
         scaledTextSize < kLargeDFFontSize) {
         return false;
     }
 
     // rasterizers and mask filters modify alpha, which doesn't
     // translate well to distance
     if (skPaint.getRasterizer() || skPaint.getMaskFilter() ||
-        !fContext->shaderDerivativeSupport()) {
+        !fContext->caps()->shaderCaps()->shaderDerivativeSupport()) {
         return false;
     }
 
     // TODO: add some stroking support
     if (skPaint.getStyle() != SkPaint::kFill_Style) {
         return false;
     }
 
     return true;
 }
@@ skipping 1811 matching lines @@
             gTextContext->createDrawTextBlob(rt, clip, grPaint, skPaint, viewMatrix, text,
                                              static_cast<size_t>(textLen), 0, 0, noClip));
 
     SkScalar transX = static_cast<SkScalar>(random->nextU());
     SkScalar transY = static_cast<SkScalar>(random->nextU());
     const GrAtlasTextContext::BitmapTextBlob::Run::SubRunInfo& info = blob->fRuns[0].fSubRunInfo[0];
     return gTextContext->createBatch(blob, info, textLen, 0, 0, color, transX, transY, skPaint);
 }
 
 #endif