Remove trace marker support from GrBufferedDrawTarget

src/gpu/GrTargetCommands.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 GrTargetCommands_DEFINED
 #define GrTargetCommands_DEFINED
 
@@ skipping 28 matching lines @@
             kClear_CmdType             = 2,
             kClearStencil_CmdType      = 3,
             kCopySurface_CmdType       = 4,
             kDrawPath_CmdType          = 5,
             kDrawPaths_CmdType         = 6,
             kDrawBatch_CmdType         = 7,
             kXferBarrier_CmdType       = 8,
         };
 
         Cmd(CmdType type)
-            : fMarkerID(-1)
-            , fType(type)
+            : fType(type)
 #if GR_BATCH_SPEW
             , fUniqueID(GenID(&gUniqueID))
 #endif
-{}
+        {}
         virtual ~Cmd() {}
 
         virtual void execute(GrGpu*) = 0;
 
         CmdType type() const { return fType; }
 
-        // trace markers
-        bool isTraced() const { return -1 != fMarkerID; }
-        void setMarkerID(int markerID) { SkASSERT(-1 == fMarkerID); fMarkerID = markerID; }
-        int markerID() const { return fMarkerID; }
         GrBATCH_SPEW(uint32_t uniqueID() const { return fUniqueID;} )
 
     private:
         // TODO move this to a common header so it can be shared with GrBatch
         static uint32_t GenID(int32_t* idCounter) {
             uint32_t id = static_cast<uint32_t>(sk_atomic_inc(idCounter)) + 1;
             if (!id) {
                 SkFAIL("This should never wrap\n");
             }
             return id;
         }
-        int              fMarkerID;
         CmdType          fType;
         GrBATCH_SPEW(uint32_t fUniqueID);
         GrBATCH_SPEW(static int32_t gUniqueID;)
     };
 
     void reset();
     void flush(GrBufferedDrawTarget*);
 
 private:
     friend class GrCommandBuilder;
@@ skipping 191 matching lines @@
 
     CmdBuffer* cmdBuffer() { return &fCmdBuffer; }
     GrBatchTarget* batchTarget() { return &fBatchTarget; }
 
     CmdBuffer                           fCmdBuffer;
     GrBatchTarget                       fBatchTarget;
 };
 
 #endif