Add batch unit tests for ovals

src/gpu/GrBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrBatch_DEFINED
 #define GrBatch_DEFINED
 
@@ skipping 20 matching lines @@
  * subclasses complete freedom to decide how / what they can batch.
  *
  * Batches are created when GrContext processes a draw call. Batches of the same  subclass may be
  * merged using combineIfPossible. When two batches merge, one takes on the union of the data
  * and the other is left empty. The merged batch becomes responsible for drawing the data from both
  * the original batches.
  *
  * If there are any possible optimizations which might require knowing more about the full state of
  * the draw, ie whether or not the GrBatch is allowed to tweak alpha for coverage, then this
  * information will be communicated to the GrBatch prior to geometry generation.
+ * TODO Batch should own the draw bounds
  */
 
 class GrBatch : public SkRefCnt {
 public:
     SK_DECLARE_INST_COUNT(GrBatch)
     GrBatch() : fClassID(kIllegalBatchClassID), fNumberOfDraws(0) { SkDEBUGCODE(fUsed = false;) }
     virtual ~GrBatch() {}
 
     virtual const char* name() const = 0;
     virtual void getInvariantOutputColor(GrInitInvariantOutput* out) const = 0;
@@ skipping 71 matching lines @@
     static int32_t gCurrBatchClassID;
 
     SkDEBUGCODE(bool fUsed;)
 
     int fNumberOfDraws;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif