Don't add Segoe UI to the fallback font list if it is the system font.

Don't add Segoe UI to the fallback font list if it is the system font.

In this case Segoe UI and its linked fonts are already in the fallback list.
This is an attempt to fix the perf regression caused on the page_cycler.intl_hi_ru bot caused by the change to
remove duplicate fonts from the fallback list.

BUG=469700
Committed: https://crrev.com/2cf99389793d41131db47185a28cc153d96a2bab
Cr-Commit-Position: refs/heads/master@{#322084}

[ananta, 2015-03-24 15:45:26]

ananta@chromium.org changed reviewers:
+ msw@chromium.org

[msw, 2015-03-24 17:38:52]

lgtm

https://codereview.chromium.org/999173008/diff/20001/ui/gfx/render_text_harfb...
File ui/gfx/render_text_harfbuzz.cc (right):

https://codereview.chromium.org/999173008/diff/20001/ui/gfx/render_text_harfb...
ui/gfx/render_text_harfbuzz.cc:1300: if (!LowerCaseEqualsASCII(primary_family,
"segoe ui")) {
nit: maybe check |uniscribe_family| too?

[ananta, 2015-03-24 20:10:12]

https://codereview.chromium.org/999173008/diff/20001/ui/gfx/render_text_harfb...
File ui/gfx/render_text_harfbuzz.cc (right):

https://codereview.chromium.org/999173008/diff/20001/ui/gfx/render_text_harfb...
ui/gfx/render_text_harfbuzz.cc:1300: if (!LowerCaseEqualsASCII(primary_family,
"segoe ui")) {
On 2015/03/24 17:38:52, msw wrote:
> nit: maybe check |uniscribe_family| too?

Done.

[ananta, 2015-03-24 21:51:14]

The CQ bit was checked by ananta@chromium.org

[ananta, 2015-03-24 21:51:14]

The patchset sent to the CQ was uploaded after l-g-t-m from msw@chromium.org
Link to the patchset: https://codereview.chromium.org/999173008/#ps40001 (title:
"Code review comments")

[commit-bot: I haz the power, 2015-03-24 21:51:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/999173008/40001

[commit-bot: I haz the power, 2015-03-24 22:47:28]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-24 22:48:20]

Patchset 3 (id:??) landed as
https://crrev.com/2cf99389793d41131db47185a28cc153d96a2bab
Cr-Commit-Position: refs/heads/master@{#322084}