Render batch bounds as stroke rects

include/private/GrAuditTrail.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrAuditTrail_DEFINED
 #define GrAuditTrail_DEFINED
 
@@ skipping 107 matching lines @@
     SkString toJson(bool prettyPrint = false) const;
 
     // returns a json string of all of the batches associated with a given client id
     SkString toJson(int clientID, bool prettyPrint = false) const;
 
     bool isEnabled() { return fEnabled; }
     void setEnabled(bool enabled) { fEnabled = enabled; }
 
     void setClientID(int clientID) { fClientID = clientID; }
 
+    // We could just return our internal bookkeeping struct if copying the data out becomes
+    // a performance issue, but until then its nice to decouple
+    struct BatchInfo {
+        SkRect fBounds;
+        struct Batch {
+            int fClientID;
+            SkRect fBounds;
+        };
+        SkTArray<Batch> fBatches;
+    };
+
+    void getBoundsByClientID(SkTArray<BatchInfo>* outInfo, int clientID);
+
     void fullReset() {
         SkASSERT(fEnabled);
         fBatchList.reset();
         fIDLookup.reset();
         // free all client batches
         fClientIDLookup.foreach([](const int&, Batches** batches) { delete *batches; });
         fClientIDLookup.reset();
         fBatchPool.reset(); // must be last, frees all of the memory
     }
 
@@ skipping 50 matching lines @@
 #define GR_AUDIT_TRAIL_ADDBATCH(audit_trail, batchname, bounds) \
     GR_AUDIT_TRAIL_INVOKE_GUARD(audit_trail, addBatch, batchname, bounds);
 
 #define GR_AUDIT_TRAIL_BATCHING_RESULT_COMBINED(audit_trail, combiner) \
     GR_AUDIT_TRAIL_INVOKE_GUARD(audit_trail, batchingResultCombined, combiner);
 
 #define GR_AUDIT_TRAIL_BATCHING_RESULT_NEW(audit_trail, batch) \
     GR_AUDIT_TRAIL_INVOKE_GUARD(audit_trail, batchingResultNew, batch);
 
 #endif