Respect the clearance while positioning pending floats.

third_party/WebKit/Source/core/layout/ng/ng_space_utils.h

 // Copyright 2017 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 NGSpaceUtils_h
 #define NGSpaceUtils_h
 
 #include "core/CoreExport.h"
+#include "core/style/ComputedStyleConstants.h"
 #include "platform/LayoutUnit.h"
 #include "platform/wtf/Optional.h"
 
 namespace blink {
 
 class ComputedStyle;
 struct NGExclusions;
 class NGLayoutInputNode;
+struct NGLogicalOffset;
 
 // Whether an in-flow child creates a new formatting context.
 //
 // This will *NOT* check the following cases:
 //  - The child is a inline-level, e.g. "display: inline-block".
 //  - The child establishes a new formatting context, but should be a child of
 //    another layout algorithm, e.g. "display: table-caption" or flex-item.
 CORE_EXPORT bool IsNewFormattingContextForBlockLevelChild(
     const ComputedStyle& parent_style,
     const NGLayoutInputNode& node);
 
-// Gets the clearance offset based on the provided {@code style} and list of
-// exclusions that represent left/right float.
+// Gets the clearance offset based on the provided {@code clear_type} and list
+// of exclusions that represent left/right float.
 CORE_EXPORT WTF::Optional<LayoutUnit> GetClearanceOffset(
     const std::shared_ptr<NGExclusions>& exclusions,
-    const ComputedStyle& style);
+    EClear clear_type);
 
 // Whether child's constraint space should shrink to its intrinsic width.
 // This is needed for buttons, select, input, floats and orthogonal children.
 // See LayoutBox::sizesLogicalWidthToFitContent for the rationale behind this.
 bool ShouldShrinkToFit(const ComputedStyle& parent_style,
                        const ComputedStyle& style);
 
+// Adjusts {@code offset} to the clearance line.
+CORE_EXPORT void AdjustToClearance(
+    const WTF::Optional<LayoutUnit>& clearance_offset,
+    NGLogicalOffset* offset);
+
 }  // namespace blink
 
 #endif  // NGSpaceUtils_h