leliukmar@,
Thanks for filing the issue.
Could you please provide us above views_examples_with_content_exe file to triage the issue from TE end.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/515f516d578e69f58460cd245b9361d57634f603

commit 515f516d578e69f58460cd245b9361d57634f603
Author: Mariia Leliuk <leliukmar@yandex-team.ru>
Date: Tue Jul 18 08:09:01 2017

Fix for Appkit sometimes making the font italic when changing font's weight

When trying to get Semibold font using cocoa's convertWeight it somehow becomes
Italic.
It looks like there is a problem in cocoa. I have tried the following test
(which follows the steps to get Semibold font in platform_font_mac.mm) and it
fails on the last line:

  NSFont* ns_font = [NSFont systemFontOfSize:13];
  NSFontManager* font_manager = [NSFontManager sharedFontManager];

  ns_font = [font_manager convertFont:ns_font toHaveTrait:NSBoldFontMask];
  {
    NSFontTraitMask traits = [font_manager traitsOfFont:ns_font];
    EXPECT_FALSE(traits & NSItalicFontMask);
  }

  ns_font = [font_manager convertWeight:NO ofFont:ns_font];
  {
    NSFontTraitMask traits = [font_manager traitsOfFont:ns_font];
    EXPECT_FALSE(traits & NSItalicFontMask);
  }

So we should better apply NSFontTraitMask to the derived font unconditionally.

BUG= 742261 

Change-Id: If7d6c93cd95a3afce0909d65a8668f7a111eb429
Reviewed-on: https://chromium-review.googlesource.com/570041
Reviewed-by: Trent Apted <tapted@chromium.org>
Reviewed-by: Alexei Svitkine (slow) <asvitkine@chromium.org>
Commit-Queue: Trent Apted <tapted@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487416}
[modify] https://crrev.com/515f516d578e69f58460cd245b9361d57634f603/ui/gfx/platform_font_mac.mm
[modify] https://crrev.com/515f516d578e69f58460cd245b9361d57634f603/ui/gfx/platform_font_mac_unittest.mm

leliukmar@, thank you for the fix. On other hand, can you please provide the repro case? we want to make sure the fix is working across all channels without any issues.

I have found this bug when I was trying to use Semibold font on macOS 10.10(on macOS 10.12 bug did not occur due to different system font).
Currently Semibold font weight is not used in Chromium, so to reproduce the problem you should run views_examples_with_content_exe, go to the Text Styles section and choose Semibold in Font Weight section.

Thank you for providing more feedback. Adding requester "jmukthavaram@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

leliukmar@ - Thanks for the fix...!!

Could you please provide views_examples_with_content_exe file to verify the issue from TE-end.

Thanks...!!

In the attached file you can find the views_examples_with_content_exe file where you can reproduce the bug. But you can also build it yourself from the source code (target name is "views_examples_with_content_exe"). Please let me know if you need anything else.

I also seems to me that the component of this bug is not right, because this bug concerns UI part, not Blink...

Deleted: views_examples_with_content_exe.zip 7.0 KB

views_examples_with_content_exe.zip 7.0 KB Download

Thank you for providing more feedback. Adding requester "krajshree@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot