Remove Skia comment API overrides

Source/platform/graphics/LoggingCanvas.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 661 matching lines @@
 
 void LoggingCanvas::onDrawVertices(VertexMode vmode, int vertexCount, const SkPoint vertices[], const SkPoint texs[], const SkColor colors[], SkXfermode* xmode,
     const uint16_t indices[], int indexCount, const SkPaint& paint)
 {
     AutoLogger logger(this);
     RefPtr<JSONObject> params = logger.logItemWithParams("drawVertices");
     params->setObject("paint", objectForSkPaint(paint));
     this->SkCanvas::onDrawVertices(vmode, vertexCount, vertices, texs, colors, xmode, indices, indexCount, paint);
 }
 
-void LoggingCanvas::beginCommentGroup(const char* description)
-{
-    AutoLogger logger(this);
-    RefPtr<JSONObject> params = logger.logItemWithParams("beginCommentGroup");
-    params->setString("description", description);
-    this->SkCanvas::beginCommentGroup(description);
-}
-
-void LoggingCanvas::addComment(const char* keyword, const char* value)
-{
-    AutoLogger logger(this);
-    RefPtr<JSONObject> params = logger.logItemWithParams("addComment");
-    params->setString("key", keyword);
-    params->setString("value", value);
-    this->SkCanvas::addComment(keyword, value);
-}
-
-void LoggingCanvas::endCommentGroup()
-{
-    AutoLogger logger(this);
-    logger.logItem("endCommentGroup");
-    this->SkCanvas::endCommentGroup();
-}
-
 void LoggingCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint)
 {
     AutoLogger logger(this);
     RefPtr<JSONObject> params = logger.logItemWithParams("drawDRRect");
     params->setObject("outer", objectForSkRRect(outer));
     params->setObject("inner", objectForSkRRect(inner));
     params->setObject("paint", objectForSkPaint(paint));
     this->SkCanvas::onDrawDRRect(outer, inner, paint);
 }
 
@@ skipping 175 matching lines @@
     return pictureAsJSON->toPrettyJSONString();
 }
 
 void showSkPicture(const SkPicture* picture)
 {
     WTFLogAlways("%s\n", pictureAsDebugString(picture).utf8().data());
 }
 #endif
 
 } // namespace blink