Separate property and context updates in PaintPropertyTreeBuilder

third_party/WebKit/Source/core/paint/PaintPropertyTreeBuilder.h

 // Copyright 2015 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 PaintPropertyTreeBuilder_h
 #define PaintPropertyTreeBuilder_h
 
 #include "platform/geometry/LayoutPoint.h"
 #include "platform/graphics/paint/ClipPaintPropertyNode.h"
 #include "platform/graphics/paint/EffectPaintPropertyNode.h"
@@ skipping 65 matching lines @@
 };
 
 // Creates paint property tree nodes for special things in the layout tree.
 // Special things include but not limit to: overflow clip, transform, fixed-pos,
 // animation, mask, filter, ... etc.
 // It expects to be invoked for each layout tree node in DOM order during
 // InPrePaint phase.
 class PaintPropertyTreeBuilder {
  public:
   PaintPropertyTreeBuilderContext setupInitialContext();
-  void buildTreeNodes(FrameView&, PaintPropertyTreeBuilderContext&);
-  void buildTreeNodesForSelf(const LayoutObject&,
-                             PaintPropertyTreeBuilderContext&);
-  void buildTreeNodesForChildren(const LayoutObject&,
-                                 PaintPropertyTreeBuilderContext&);
+  // Update the paint properties for |FrameView| and ensure the context is
+  // up to date.
+  void updatePropertiesAndContext(FrameView&, PaintPropertyTreeBuilderContext&);
+
+  // Update the paint properties that affect this object (e.g., properties like
+  // paint offset translation) and ensure the context is up to date.
+  void updatePropertiesAndContextForSelf(const LayoutObject&,
+                                         PaintPropertyTreeBuilderContext&);
+  // Update the paint properties that affect children of this object (e.g.,
+  // scroll offset transform) and ensure the context is up to date.
+  void updatePropertiesAndContextForChildren(const LayoutObject&,
+                                             PaintPropertyTreeBuilderContext&);
 
  private:
   static void updatePaintOffsetTranslation(const LayoutObject&,
                                            PaintPropertyTreeBuilderContext&);
   static void updateTransform(const LayoutObject&,
                               PaintPropertyTreeBuilderContext&);
   static void updateTransformForNonRootSVG(const LayoutObject&,
                                            PaintPropertyTreeBuilderContext&);
   static void updateEffect(const LayoutObject&,
                            PaintPropertyTreeBuilderContext&);
@@ skipping 17 matching lines @@
   static void updateScrollAndScrollTranslation(
       const LayoutObject&,
       PaintPropertyTreeBuilderContext&);
   static void updateOutOfFlowContext(const LayoutObject&,
                                      PaintPropertyTreeBuilderContext&);
 };
 
 }  // namespace blink
 
 #endif  // PaintPropertyTreeBuilder_h