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Note, this has been working for sometime. I occasionally build from source and this problem started showing itself for the past three builds.

I am including my google credentials in my args.gn which has worked in the past.

cat > out/Default/args.gn << EOF
google_api_key="xxxxxxxx"
google_default_client_id="xxxxxxxx"
google_default_client_secret="xxxxxxxx"
use_jumbo_build=true
enable_nacl=false
symbol_level=0
remove_webcore_debug_symbols=true
linux_use_bundled_binutils=true
use_debug_fission=true
is_clang=true
treat_warnings_as_errors=false
is_debug=false
EOF

Hi Samuel, thank you for reporting, 
can you also include screenshot for chrome://signin-internals/ and chrome://sync-internals?
 

I'm unable to reproduce on an official build.  OP could you bisect the issue?

I am including the requested screenshots, the signin-internals is showing invalid credentials; however, I went through the same steps and credentials using Version 64.0.3282.39 (Official Build) beta (64-bit) and it worked correctly. I had tried a few times on Chromium. Interesting enough, it looks like I might be signed in on the settings page but the sync reports an error


 

Deleted: signin-internals.png 204 KB

	signin-internals.png 204 KB View Download

Deleted: sync-internals.png 596 KB

	sync-internals.png 596 KB View Download

Deleted: settings.png 30.9 KB

	settings.png 30.9 KB View Download

Working Chrome Version

Deleted: workingchromeversion.png 53.2 KB

	workingchromeversion.png 53.2 KB View Download

Attaching signin and sync internals from working Chrome version.

Deleted: chrome-signin-internals.png 265 KB

	chrome-signin-internals.png 265 KB View Download

Deleted: chrome-sync-internals.png 518 KB

	chrome-sync-internals.png 518 KB View Download

Hi Signin team, can you take a look for this?

As per comment#11, can anyone from the sign-in team have a look at this issue.

Thanks!

Tested the issue on reported chromium version 65.0.3310.0 using Ubuntu 14.04, tried to sync my gmail acocunt to different chromium versions and observations are as follows:
1) On chromium version 65.0.3310.0 & 64.0.3282.99, unable to login 
2) On chromium version 63.0.3239.84 , able to login 
CC'ing: msarda@chromium.org, with reference to  Issue 667488 

@Reporter:
Please refer to comment# 12 in  Issue 667488 .

can anyone from the sign-in team have a look at this issue.

Thanks!

--Chrome Identity automated triaging--

This bug is Unconfirmed and has gone two weeks without any activity, so it is being closed as WontFix. Please re-open if this is still a valid and reproducible bug or feature request and mark it as Available. Please see https://goo.gl/78kbny for more details. Please remove the Services>SignIn or UI>Browser>Profiles components if this bug isn't related to Chrome Identity.

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

I did another build and this still doesn't work

Version 66.0.3346.0 (Developer Build) custom (64-bit)

Because Chromium login is broken I have no alternative to but to use Chrome, hopefully this bug will be eventually fixed in the near future