TEMPORARY: track stencil clip state in GrRenderTargetOpList

src/gpu/GrRenderTargetOpList.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRenderTargetOpList.h"
 
 #include "GrAppliedClip.h"
@@ skipping 34 matching lines @@
 // Experimentally we have found that most batching occurs within the first 10 comparisons.
 static const int kDefaultMaxBatchLookback  = 10;
 static const int kDefaultMaxBatchLookahead = 10;
 
 GrRenderTargetOpList::GrRenderTargetOpList(GrRenderTargetProxy* rtp, GrGpu* gpu,
                                            GrResourceProvider* resourceProvider,
                                            GrAuditTrail* auditTrail, const Options& options)
     : INHERITED(rtp, auditTrail)
     , fLastFullClearBatch(nullptr)
     , fGpu(SkRef(gpu))
-    , fResourceProvider(resourceProvider) {
+    , fResourceProvider(resourceProvider)
+    , fLastClipStackGenID(SK_InvalidUniqueID) {
     // TODO: Stop extracting the context (currently needed by GrClip)
     fContext = fGpu->getContext();
 
     fClipBatchToBounds = options.fClipBatchToBounds;
     fDrawBatchBounds = options.fDrawBatchBounds;
     fMaxBatchLookback = (options.fMaxBatchLookback < 0) ? kDefaultMaxBatchLookback :
                                                           options.fMaxBatchLookback;
     fMaxBatchLookahead = (options.fMaxBatchLookahead < 0) ? kDefaultMaxBatchLookahead :
                                                            options.fMaxBatchLookahead;
 
@@ skipping 505 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
 void GrRenderTargetOpList::clearStencilClip(const GrFixedClip& clip,
                                             bool insideStencilMask,
                                             GrRenderTarget* rt) {
     GrBatch* batch = new GrClearStencilClipBatch(clip, insideStencilMask, rt);
     this->recordBatch(batch, batch->bounds());
     batch->unref();
 }