Clean up Ganesh path render a little bit

src/gpu/GrDrawContext.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 "GrBatchTest.h"
@@ skipping 572 matching lines @@
                             const SkStrokeRec& stroke,
                             SkRect rects[2]) {
     SkASSERT(stroke.isFillStyle());
 
     if (path.isInverseFillType()) {
         return false;
     }
 
     // TODO: this restriction could be lifted if we were willing to apply
     // the matrix to all the points individually rather than just to the rect
-    if (!viewMatrix.preservesAxisAlignment()) {
+    if (!viewMatrix.rectStaysRect()) {
         return false;
     }
 
     SkPath::Direction dirs[2];
     if (!path.isNestedFillRects(rects, dirs)) {
         return false;
     }
 
     if (SkPath::kWinding_FillType == path.getFillType() && dirs[0] == dirs[1]) {
         // The two rects need to be wound opposite to each other
@@ skipping 192 matching lines @@
     args.fAntiAlias = useCoverageAA;
     pr->drawPath(args);
 }
 
 void GrDrawContext::drawBatch(GrPipelineBuilder* pipelineBuilder, GrDrawBatch* batch) {
     RETURN_IF_ABANDONED
     SkDEBUGCODE(this->validate();)
 
     this->getDrawTarget()->drawBatch(*pipelineBuilder, batch);
 }