Land Yosemite results for six editing/selection/vertical* tests.

Land Yosemite results for six editing/selection/vertical* tests.

These failures used to be mostly hidden because of bug 138070, now they are visible.
The change is due to different fonts.

* platform/mac-mavericks/editing/selection/vertical-lr-ltr-extend-line-backward-br-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-lr-ltr-extend-line-backward-br-expected.txt.
* platform/mac-mavericks/editing/selection/vertical-lr-ltr-extend-line-forward-br-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-lr-ltr-extend-line-forward-br-expected.txt.
* platform/mac-mavericks/editing/selection/vertical-rl-ltr-extend-line-backward-br-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-br-expected.txt.
* platform/mac-mavericks/editing/selection/vertical-rl-ltr-extend-line-backward-p-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-p-expected.txt.
* platform/mac-mavericks/editing/selection/vertical-rl-ltr-extend-line-forward-br-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-br-expected.txt.
* platform/mac-mavericks/editing/selection/vertical-rl-ltr-extend-line-forward-p-expected.txt: Copied from LayoutTests/platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-p-expected.txt.
* platform/mac/editing/selection/vertical-lr-ltr-extend-line-backward-br-expected.png: Added.
* platform/mac/editing/selection/vertical-lr-ltr-extend-line-backward-br-expected.txt:
* platform/mac/editing/selection/vertical-lr-ltr-extend-line-forward-br-expected.png: Added.
* platform/mac/editing/selection/vertical-lr-ltr-extend-line-forward-br-expected.txt:
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-br-expected.png: Added.
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-br-expected.txt:
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-p-expected.png: Added.
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-backward-p-expected.txt:
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-br-expected.png: Added.
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-br-expected.txt:
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-p-expected.png: Added.
* platform/mac/editing/selection/vertical-rl-ltr-extend-line-forward-p-expected.txt:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@175205 268f45cc-cd09-0410-ab3c-d52691b4dbfc