- Setup infrastructure to white list some native methods as not requiring

- Setup infrastructure to white list some native methods as not requiring
  auto setup of Dart API scopes
- List some functions in the list to check out the infrastructure. Performance
  gains from listing these:

  firstChild         222.33 to 309.6903096903097
  lastChild          217.56 to 306.0
  nextSibling        363.00 to 514.0
  previousSibling    357.64 to 506.0
  nextSiblingDynamic 348.01 to 511.0
  childNodes         309.38 to 444.5554445554446

R=rmacnak@google.com, vsm@google.com

Committed: https://code.google.com/p/dart/source/detail?r=31342

[siva, 2013-12-20 18:06:04]

synched to TOT.

[vsm, 2013-12-20 18:18:56]

nice!  lgtm with some suggestions.

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
File tools/dom/scripts/systemnative.py (right):

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
tools/dom/scripts/systemnative.py:93: ['Node', 'firstChild', 'Getter'],
More efficient to make this a set of tuples instead of a list of lists:

_cpp_no_auto_scope_list = Set([
  ('Node', 'firstChild', 'Getter'),
  ...
])

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
tools/dom/scripts/systemnative.py:1077: def _GenerateAutoSetupScope(self,
idl_name, native_suffix):
With the above, this function can be:

return (self._interface.id, idl_name, native_suffix) not in
_cpp_no_auto_scope_list

[rmacnak, 2013-12-20 18:39:31]

LGTM!

[siva, 2013-12-20 18:46:00]

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
File tools/dom/scripts/systemnative.py (right):

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
tools/dom/scripts/systemnative.py:93: ['Node', 'firstChild', 'Getter'],
On 2013/12/20 18:18:56, vsm wrote:
> More efficient to make this a set of tuples instead of a list of lists:
> 
> _cpp_no_auto_scope_list = Set([
>   ('Node', 'firstChild', 'Getter'),
>   ...
> ])
> 

Done.

https://codereview.chromium.org/119543002/diff/20001/tools/dom/scripts/system...
tools/dom/scripts/systemnative.py:1077: def _GenerateAutoSetupScope(self,
idl_name, native_suffix):
On 2013/12/20 18:18:56, vsm wrote:
> With the above, this function can be:
> 
> return (self._interface.id, idl_name, native_suffix) not in
> _cpp_no_auto_scope_list

Done.

[siva, 2013-12-20 19:02:07]

Committed patchset #5 manually as r31342 (presubmit successful).