Extract gpu line dashing to GrDashLinePathRenderer

tests/TessellatingPathRendererTests.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 "SkPath.h"
 
 #if SK_SUPPORT_GPU
@@ skipping 218 matching lines @@
     path.lineTo(    0.0f,  -1.0f);
     path.lineTo(10000.0f,   0.000001f);
     path.lineTo(    0.0f, -30.0f);
     return path;
 }
 
 static void test_path(GrDrawTarget* dt, GrRenderTarget* rt, const SkPath& path) {
     GrTessellatingPathRenderer tess;
     GrPipelineBuilder pipelineBuilder;
     pipelineBuilder.setRenderTarget(rt);
-    SkStrokeRec stroke(SkStrokeRec::kFill_InitStyle);
+    GrStrokeInfo stroke(SkStrokeRec::kFill_InitStyle);
     tess.drawPath(dt, &pipelineBuilder, SK_ColorWHITE, SkMatrix::I(), path, stroke, false);
 }
 
 DEF_GPUTEST(TessellatingPathRendererTests, reporter, factory) {
     GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
     if (NULL == context) {
         return;
     }
     GrSurfaceDesc desc;
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
@@ skipping 20 matching lines @@
     test_path(dt, rt, create_path_8());
     test_path(dt, rt, create_path_9());
     test_path(dt, rt, create_path_10());
     test_path(dt, rt, create_path_11());
     test_path(dt, rt, create_path_12());
     test_path(dt, rt, create_path_13());
     test_path(dt, rt, create_path_14());
     test_path(dt, rt, create_path_15());
 }
 #endif