Use more direct Element creation methods

Use more direct Element creation methods

In both these cases we know the kind of Element we want to create so be more specific and avoid some unneeded instructions.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=167104

[rwlbuis, 2014-02-13 16:17:36]

Eliminate some code paths we do not need to go through.

[Inactive, 2014-02-13 17:26:22]

https://codereview.chromium.org/161753003/diff/1/Source/core/dom/Document.cpp
File Source/core/dom/Document.cpp (right):

https://codereview.chromium.org/161753003/diff/1/Source/core/dom/Document.cpp...
Source/core/dom/Document.cpp:1340: m_titleElement =
HTMLTitleElement::create(*this);
This no longer updates m_sawElementsInKnownNamespaces. Why isn't this a problem?

[rwlbuis, 2014-02-13 17:41:40]

On 2014/02/13 17:26:22, Chris Dumez wrote:
> https://codereview.chromium.org/161753003/diff/1/Source/core/dom/Document.cpp
> File Source/core/dom/Document.cpp (right):
> 
>
https://codereview.chromium.org/161753003/diff/1/Source/core/dom/Document.cpp...
> Source/core/dom/Document.cpp:1340: m_titleElement =
> HTMLTitleElement::create(*this);
> This no longer updates m_sawElementsInKnownNamespaces. Why isn't this a
problem?

This is used only by XMLParser. Besides, head() is non-null and a HTMLElement so
it will be set to true anyway :)

[Inactive, 2014-02-13 17:47:32]

lgtm

[commit-bot: I haz the power, 2014-02-13 17:47:45]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rob.buis@samsung.com/161753003/1

[commit-bot: I haz the power, 2014-02-13 19:03:21]

Change committed as 167104