[cc] Add nearest neighbor filtering for PictureLayer.

cc/layers/picture_layer_impl.h

Index: cc/layers/picture_layer_impl.h
diff --git a/cc/layers/picture_layer_impl.h b/cc/layers/picture_layer_impl.h
index 52d8433c93ca94c4edc5b2611dbad50b2093e5a0..77bdd3476684f6d8d68f4228d2c42751ac14568c 100644
--- a/cc/layers/picture_layer_impl.h
+++ b/cc/layers/picture_layer_impl.h
@@ -115,6 +115,8 @@ class CC_EXPORT PictureLayerImpl
                              gfx::Size* resource_size) const override;
   void set_is_mask(bool is_mask) { is_mask_ = is_mask; }
 
+  void SetNearestNeighbor(bool nearest_neighbor);
+
   size_t GPUMemoryUsageInBytes() const override;
 
   void RunMicroBenchmark(MicroBenchmarkImpl* benchmark) override;
@@ -201,6 +203,8 @@ class CC_EXPORT PictureLayerImpl
   bool only_used_low_res_last_append_quads_;
   bool is_mask_;
 
+  bool nearest_neighbor_;
+
   // Any draw properties derived from |transform|, |viewport|, and |clip|
   // parameters in LayerTreeHostImpl::SetExternalDrawConstraints are not valid
   // for prioritizing tiles during resourceless software draws. This is because