cc: Remove all traces of SkPicture cloning.

cc/resources/picture_pile.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/picture_pile.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 327 matching lines @@
     return updated;
 
   for (std::vector<gfx::Rect>::iterator it = record_rects.begin();
        it != record_rects.end();
        it++) {
     gfx::Rect record_rect = *it;
     record_rect = PadRect(record_rect);
 
     int repeat_count = std::max(1, slow_down_raster_scale_factor_for_debug_);
     scoped_refptr<Picture> picture;
-    int num_raster_threads = RasterWorkerPool::GetNumRasterThreads();
 
     // Note: Currently, gathering of pixel refs when using a single
     // raster thread doesn't provide any benefit. This might change
     // in the future but we avoid it for now to reduce the cost of
     // Picture::Create.
-    bool gather_pixel_refs = num_raster_threads > 1;
+    bool gather_pixel_refs = RasterWorkerPool::GetNumRasterThreads() > 1;
 
     {
       base::TimeDelta best_duration = base::TimeDelta::Max();
       for (int i = 0; i < repeat_count; i++) {
         base::TimeTicks start_time = stats_instrumentation->StartRecording();
         picture = Picture::Create(record_rect,
                                   painter,
                                   tile_grid_info_,
                                   gather_pixel_refs,
-                                  num_raster_threads,
                                   recording_mode);
         // Note the '&&' with previous is-suitable state.
         // This means that once a picture-pile becomes unsuitable for gpu
         // rasterization due to some content, it will continue to be unsuitable
         // even if that content is replaced by gpu-friendly content.
         // This is an optimization to avoid iterating though all pictures in
         // the pile after each invalidation.
         is_suitable_for_gpu_rasterization_ &=
             picture->IsSuitableForGpuRasterization();
         has_text_ |= picture->HasText();
@@ skipping 28 matching lines @@
 }
 
 void PicturePile::SetEmptyBounds() {
   tiling_.SetTilingSize(gfx::Size());
   picture_map_.clear();
   has_any_recordings_ = false;
   recorded_viewport_ = gfx::Rect();
 }
 
 }  // namespace cc