Move cc::ClipNode::target_is_clipped to cc::EffectNode

cc/trees/clip_node.h

 // Copyright 2016 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_TREES_CLIP_NODE_H_
 #define CC_TREES_CLIP_NODE_H_
 
 #include "cc/base/cc_export.h"
 #include "ui/gfx/geometry/rect_f.h"
 
@@ skipping 41 matching lines @@
   gfx::RectF combined_clip_in_target_space;
   gfx::RectF clip_in_target_space;
 
   // The id of the transform node that defines the clip node's local space.
   int transform_id;
 
   // The id of the transform node that defines the clip node's target space.
   int target_transform_id;
 
   // The id of the effect node that defines the clip node's target space.
+  // TODO(crbug.com/642581 crbug.com/642584): As we progress toward SPv2 and
+  // layer list mode, there may be layers having the same clip but draw onto
+  // different target. Target information shall be removed from here.
   int target_effect_id;
 
   // When true, |clip_in_target_space| does not include clips from ancestor
   // nodes.
   bool layer_clipping_uses_only_local_clip : 1;
 
-  // True if target surface needs to be drawn with a clip applied.
-  bool target_is_clipped : 1;
-
   // True if layers with this clip tree node need to be drawn with a clip
   // applied.
   bool layers_are_clipped : 1;
   bool layers_are_clipped_when_surfaces_disabled : 1;
 
   // Nodes that correspond to unclipped surfaces disregard ancestor clips.
   bool resets_clip : 1;
 
   bool operator==(const ClipNode& other) const;
 
   void AsValueInto(base::trace_event::TracedValue* value) const;
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_CLIP_NODE_H_