remove (unused) GatherPixelRefs

tools/PictureRenderingFlags.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "PictureRenderingFlags.h"
 
 #include "CopyTilesRenderer.h"
@@ skipping 113 matching lines @@
             widthString = FLAGS_mode[1];
             if (FLAGS_mode.count() < 3) {
                 error.printf("Missing height for --mode %s\n", mode);
                 return NULL;
             }
 
             heightString = FLAGS_mode[2];
         } else if (0 == strcmp(mode, "playbackCreation") && kBench_PictureTool == tool) {
             renderer.reset(SkNEW_ARGS(sk_tools::PlaybackCreationRenderer, RENDERER_ARGS));
         // undocumented
-        } else if (0 == strcmp(mode, "gatherPixelRefs") && kBench_PictureTool == tool) {
-#if SK_SUPPORT_GPU
-            renderer.reset(sk_tools::CreateGatherPixelRefsRenderer(grContextOpts));
-#else
-            renderer.reset(sk_tools::CreateGatherPixelRefsRenderer());
-#endif
         } else if (0 == strcmp(mode, "rerecord") && kRender_PictureTool == tool) {
             renderer.reset(SkNEW_ARGS(sk_tools::RecordPictureRenderer, RENDERER_ARGS));
         } else if (0 == strcmp(mode, "simple")) {
             // Allow 'mode' to be set to 'simple', but do not create a renderer, so we can
             // ensure that pipe does not override a mode besides simple. The renderer will
             // be created below.
         } else {
             error.printf("%s is not a valid mode for --mode\n", mode);
             return NULL;
         }
@@ skipping 205 matching lines @@
         if (FLAGS_pipe && sk_tools::PictureRenderer::kNone_BBoxHierarchyType != bbhType) {
             error.printf("--pipe and --bbh cannot be used together\n");
             return NULL;
         }
     }
     renderer->setBBoxHierarchyType(bbhType);
     renderer->setScaleFactor(SkDoubleToScalar(FLAGS_scale));
 
     return renderer.detach();
 }