Add generated InheritedDataShared in ComputedStyleBase.

ComputedStyle::InheritedDataShared is a handwritten function that
compares subgroup pointers. This makes it difficult to change the group
that a field belongs to, as it might break the correctness of the

This patch adds a generated function InheritedDataShared in
ComputedStyleBase that works no matter where fields are stored.

There are no behavioural changes in this patch.

Diff of generated files:


Cr-Commit-Position: refs/heads/master@{#472593}
3 files changed