Delay string conversion of attribute names until needed.

Upon attribute creation/update/removal wrt a qualified name, that
operation is reported to inspector via the
InspectorInstrumentation interface. Do that without stringifying
the qualified name first, as the notification and its stringified
name may very well not be made use of. If, for instance, developer
tools aren't active.

Gains 4% on dromaeo.domattr.dom_attr_setAttribute.

R=adamk
BUG=

Review URL: https://codereview.chromium.org/832343003

git-svn-id: svn://svn.chromium.org/blink/trunk@187871 bbb929c8-8fbe-4397-9dbb-9b2b20218538
4 files changed
tree: 1d791fd1cb78cfab6d79bb0e6627f49a7c2c8740
  1. third_party/