cc: Plumb more details about pixel refs to tile manager.

cc/playback/picture_pile_impl.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 <algorithm>
 #include <limits>
 #include <set>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/base/region.h"
@@ skipping 283 matching lines @@
   skia::AnalysisCanvas canvas(layer_rect.width(), layer_rect.height());
 
   RasterForAnalysis(&canvas, layer_rect, 1.0f);
 
   analysis->is_solid_color = canvas.GetColorIfSolid(&analysis->solid_color);
 }
 
 void PicturePileImpl::GatherPixelRefs(
     const gfx::Rect& content_rect,
     float contents_scale,
-    std::vector<SkPixelRef*>* pixel_refs) const {
+    std::vector<skia::PositionPixelRef>* pixel_refs) const {
   DCHECK_EQ(0u, pixel_refs->size());
   for (PixelRefIterator iter(content_rect, contents_scale, this); iter;
        ++iter) {
     pixel_refs->push_back(*iter);
   }
 }
 
 bool PicturePileImpl::CoversRect(const gfx::Rect& content_rect,
                                  float contents_scale) const {
   if (tiling_.tiling_size().IsEmpty())
@@ skipping 141 matching lines @@
   for (const auto& map_pair : picture_map_) {
     const Picture* picture = map_pair.second.get();
     if (processed_pictures.count(picture) == 0) {
       picture->EmitTraceSnapshot();
       processed_pictures.insert(picture);
     }
   }
 }
 
 }  // namespace cc