Update from https://crrev.com/304121

cc/resources/tile.h

 // 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.
 
 #ifndef CC_RESOURCES_TILE_H_
 #define CC_RESOURCES_TILE_H_
 
 #include "base/memory/ref_counted.h"
 #include "cc/base/ref_counted_managed.h"
 #include "cc/resources/managed_tile_state.h"
@@ skipping 67 matching lines @@
         NOTREACHED();
         return false;
     }
   }
 
   // TODO(vmpstr): Move this to the iterators.
   bool required_for_activation() const { return required_for_activation_; }
   void set_required_for_activation(bool is_required) {
     required_for_activation_ = is_required;
   }
+  bool required_for_draw() const { return required_for_draw_; }
+  void set_required_for_draw(bool is_required) {
+    required_for_draw_ = is_required;
+  }
 
   bool use_picture_analysis() const {
     return !!(flags_ & USE_PICTURE_ANALYSIS);
   }
 
   bool HasResources() const { return managed_state_.draw_info.has_resource(); }
   bool NeedsRaster() const {
     return managed_state_.draw_info.mode() ==
                ManagedTileState::DrawInfo::PICTURE_PILE_MODE ||
            !managed_state_.draw_info.IsReadyToDraw();
@@ skipping 69 matching lines @@
 
   TilePriority priority_[NUM_TREES];
   ManagedTileState managed_state_;
   int layer_id_;
   int source_frame_number_;
   int flags_;
   bool is_shared_;
   int tiling_i_index_;
   int tiling_j_index_;
   bool required_for_activation_;
+  bool required_for_draw_;
 
   Id id_;
   static Id s_next_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Tile);
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_TILE_H_