https://bugs.webkit.org/show_bug.cgi?id=81733

Currently length calculation functions in LengthFunctions.h are inline. These functions are pretty big to be inline.
And these functions are expected to grow again when new length units will be introduced in bug 27160.

A decent rule of thumb is to not inline a function if it is more than 10 lines long. Also it's typically not cost effective to inline
functions with loops or switch statements. (Reference: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Inline_Functions).

Ran PerformanceTests/Parser/html5-full-render.html on Mac Snow-Leopard with and without the patch and did not see much performance difference.

Patch by Joe Thomas <joethomas@motorola.com> on 2012-03-22
Reviewed by Antti Koivisto.

* CMakeLists.txt:
* GNUmakefile.list.am:
* Target.pri:
* WebCore.gypi:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
* css/LengthFunctions.cpp: Added.
(WebCore):
(WebCore::miminumValueForLength):
(WebCore::valueForLength):
(WebCore::floatValueForLength):
* css/LengthFunctions.h:
(WebCore):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@111733 268f45cc-cd09-0410-ab3c-d52691b4dbfc