commit 0793f8f201f0a8468e6e3dc5b1a085e4161a684d
author yoichio <yoichio@chromium.org> Tue Jul 19 23:28:56 2016
committer Commit bot <commit-bot@chromium.org> Tue Jul 19 23:30:24 2016
tree cd495b885f87620c67a64d645cb6f0d51fba9b48
parent 983ca232e5b4df5c19e5f669d32d294968c6b2c5

[DOM][Editing][CodeHealth] Make private Node::hasEditableStyle static local

Node has two |hasEditableStyle|-named functions and it is very confusing.
Since one is private and uses only Node-public functions, we should make it
 file local function.
Unfortunately public |hasEditableStyle| uses it in the Node header
so we need move it to  Node.cpp.

This is preparation to move Node::*editable* functions to core/editing

BUG=

Review-Url: https://codereview.chromium.org/2155623002
Cr-Commit-Position: refs/heads/master@{#406412}