Paint the whole of a table-part background image behind the cells in a table

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

Index: third_party/WebKit/Source/core/paint/BackgroundImageGeometry.h
diff --git a/third_party/WebKit/Source/core/paint/BackgroundImageGeometry.h b/third_party/WebKit/Source/core/paint/BackgroundImageGeometry.h
index 5a7dccaf27728dd86f1283997e789efb2648fc3b..eca8c085f3f71b4cc9df8c815ca5a4e11fa77696 100644
--- a/third_party/WebKit/Source/core/paint/BackgroundImageGeometry.h
+++ b/third_party/WebKit/Source/core/paint/BackgroundImageGeometry.h
@@ -14,8 +14,11 @@
 namespace blink {
 
 class FillLayer;
+class LayoutBox;
 class LayoutBoxModelObject;
+class LayoutObject;
 class LayoutRect;
+class LayoutTableCell;
 
 class BackgroundImageGeometry {
   DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
@@ -24,6 +27,7 @@ class BackgroundImageGeometry {
   BackgroundImageGeometry() : m_hasNonLocalGeometry(false) {}
 
   void calculate(const LayoutBoxModelObject&,
+                 const LayoutObject*,

[Xianzhu, 2017/01/15 20:45:58]

Please give the parameter a name because the method is public and the
parameter's meaning is not clear just based on its type.

                  const LayoutBoxModelObject* paintContainer,
                  const GlobalPaintFlags,
                  const FillLayer&,
@@ -66,17 +70,22 @@ class BackgroundImageGeometry {
                   LayoutUnit,
                   LayoutUnit,
                   LayoutUnit,
+                  LayoutUnit,
                   LayoutUnit);
   void setRepeatY(const FillLayer&,
                   LayoutUnit,
                   LayoutUnit,
                   LayoutUnit,
+                  LayoutUnit,
                   LayoutUnit);
   void setSpaceX(LayoutUnit, LayoutUnit, LayoutUnit);
   void setSpaceY(LayoutUnit, LayoutUnit, LayoutUnit);
 
   void useFixedAttachment(const LayoutPoint& attachmentPoint);
   void setHasNonLocalGeometry() { m_hasNonLocalGeometry = true; }
+  LayoutPoint getOffsetForCell(const LayoutTableCell&, const LayoutBox&);
+  LayoutSize getPositioningAreaSizeForCell(const LayoutTableCell&,
+                                           const LayoutBox&);
 
   // TODO(schenney): Convert these to IntPoints for values that we snap
   LayoutRect m_destRect;