Split initial methods of padding on ComputedStyle.
Currently the padding properties share the same method for the initial
value: initialPadding(). This makes it difficult to generate
because the generator will generate four copies of initialPadding(),
causing a name conflict.
This patch splits the initialPadding() method into four separate methods,
one for each property.
BUG=628043
Review-Url: https://codereview.chromium.org/2825653002
Cr-Commit-Position: refs/heads/master@{#465827}
2 files changed
