Add macro to diff the groups (and their members) in ComputedStyleBase

third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index 8440e967d80a6c07f217756695667f63a1db1455..169e2f80e80b1f1d02506f2bdf87d17482d5a1a6 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -579,10 +579,8 @@ bool ComputedStyle::ScrollAnchorDisablingPropertyChanged(
       return true;
   }
 
-  if (surround_data_.Get() != other.surround_data_.Get()) {
-    if (!MarginEqual(other) || !OffsetEqual(other) || !PaddingEqual(other))
-      return true;
-  }
+  if (ComputedStyleBase::ScrollAnchorDisablingPropertyChanged(other, diff))
+    return true;
 
   if (diff.TransformChanged())
     return true;
@@ -607,11 +605,11 @@ bool ComputedStyle::DiffNeedsFullLayoutAndPaintInvalidation(
         BorderBottomWidth() != other.BorderBottomWidth() ||
         BorderRightWidth() != other.BorderRightWidth())
       return true;
-
-    if (!PaddingEqual(other))
-      return true;
   }
 
+  if (ComputedStyleBase::DiffNeedsFullLayoutAndPaintInvalidation(other))
+    return true;
+
   if (rare_non_inherited_data_.Get() != other.rare_non_inherited_data_.Get()) {
     if (rare_non_inherited_data_->appearance_ !=
             other.rare_non_inherited_data_->appearance_ ||