code path.

Reviewed by Sam Weinig.

* platform/graphics/mac/ComplexTextController.h: Added m_ltr member to ComplexTextRun.
* platform/graphics/mac/ComplexTextControllerATSUI.cpp:
(WebCore::ComplexTextController::ComplexTextRun::overrideLayoutOperation): Skip over deleted
glyphs, but update indexes and advances correctly.
(WebCore::ComplexTextController::ComplexTextRun::ComplexTextRun): Initialize m_ltr.

LayoutTests: Updated a test to account for font metric differences between Mac OS X versions. Removed
Leopard-specific results for another test now that Leopard matches current behavior.

Reviewed by Sam Weinig.

* platform/mac-leopard/fast/text/atsui-multiple-renderers-expected.checksum: Removed.
* platform/mac-leopard/fast/text/atsui-multiple-renderers-expected.png: Removed.
* platform/mac-leopard/fast/text/atsui-multiple-renderers-expected.txt: Removed.
* platform/mac/fast/text/ligature-subdivision-expected.txt:
* platform/mac/fast/text/script-tests/ligature-subdivision.js:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@50312 268f45cc-cd09-0410-ab3c-d52691b4dbfc