Narrow the distribution of GrDrawTarget a bit

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 2ca3461a692917a1c2a97c2bb5a42aa8f41a1b1c..4d2f2e79457bdc39503da75c5eedccb6592683a7 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -539,8 +539,7 @@ void GrContext::flushSurfaceWrites(GrSurface* surface) {
  * Due to its expense, the software path renderer has split out so it can
  * can be individually allowed/disallowed via the "allowSW" boolean.
  */
-GrPathRenderer* GrContext::getPathRenderer(const GrDrawTarget* target,
-                                           const GrPipelineBuilder* pipelineBuilder,
+GrPathRenderer* GrContext::getPathRenderer(const GrPipelineBuilder* pipelineBuilder,
                                            const SkMatrix& viewMatrix,
                                            const SkPath& path,
                                            const GrStrokeInfo& stroke,
@@ -552,7 +551,7 @@ GrPathRenderer* GrContext::getPathRenderer(const GrDrawTarget* target,
         fPathRendererChain = new GrPathRendererChain(this);
     }
 
-    GrPathRenderer* pr = fPathRendererChain->getPathRenderer(target,
+    GrPathRenderer* pr = fPathRendererChain->getPathRenderer(this->caps()->shaderCaps(),
                                                              pipelineBuilder,
                                                              viewMatrix,
                                                              path,