Revert of Revert of SkDrawCommand scrubbing

src/utils/debugger/SkDebugCanvas.h

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SKDEBUGCANVAS_H_
@@ skipping 84 matching lines @@
         Sets the draw command for a given index.
         @param index  The index to overwrite
         @param command The new command
      */
     void setDrawCommandAt(int index, SkDrawCommand* command);
 
     /**
         Returns information about the command at the given index.
         @param index  The index of the command
      */
-    SkTDArray<SkString*>* getCommandInfo(int index);
+    const SkTDArray<SkString*>* getCommandInfo(int index) const;
 
     /**
         Returns the visibility of the command at the given index.
         @param index  The index of the command
      */
     bool getDrawCommandVisibilityAt(int index);
 
     /**
         Returns the vector of draw commands
      */
@@ skipping 208 matching lines @@
     bool lastClipStackData(const SkPath& devPath);
     void outputConicPoints(const SkPoint* pts, SkScalar weight);
     void outputPoints(const SkPoint* pts, int count);
     void outputPointsCommon(const SkPoint* pts, int count);
     void outputScalar(SkScalar num);
 
     typedef SkCanvas INHERITED;
 };
 
 #endif