Revert of Enabling kUseConsolidatedStartupFlow by default on trunk.

Revert of Enabling kUseConsolidatedStartupFlow by default on trunk. (patchset #23 id:440001 of https://codereview.chromium.org/2475913003/ )

Reason for revert:
StartupBrowserCreatorFirstRunTest.RestoreOnStartupURLsPolicySpecified failing on Win10 Tests x64

BUG=679671
Original issue's description:
> Enabling kUseConsolidatedStartupFlow by default on trunk.
> 
> Code changes:
> - Disabling onboarding content for ChromeOS. Promotions for CrOS are out-of-scope for this launch.
> - Ensuring that preference-specified tabs do not appear in new windows when a tabbed browser already exists for the profile.
> 
> Test changes:
> - Removed 12 outdated tests
> - Fixed or updated 9 tests
> 
> Details of affected tests, and rationale, can be found in this doc: https://docs.google.com/a/google.com/document/d/1PjAemEEFrl0gIDVQfnr1oAnHkb6DcV47HlOyyo7ICZI/edit?usp=sharing
> 
> BUG=608875, 314819, 313856
> 
> Review-Url: https://codereview.chromium.org/2475913003
> Cr-Commit-Position: refs/heads/master@{#442487}
> Committed: https://chromium.googlesource.com/chromium/src/+/a52322134679a349366417e04e502bc8ce1f68e4

TBR=pkasting@chromium.org,rsesek@chromium.org,tmartino@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=608875, 314819, 313856
Review-Url: https://codereview.chromium.org/2624443004
Cr-Commit-Position: refs/heads/master@{#442544}
Committed: https://chromium.googlesource.com/chromium/src/+/d38026c5a4b7a69552a4d7f41c37fdb735f0e283

[foolip, 2017-01-10 10:00:53]

The CQ bit was checked by foolip@chromium.org

[foolip, 2017-01-10 10:00:54]

Created Revert of Enabling kUseConsolidatedStartupFlow by default on trunk.

[commit-bot: I haz the power, 2017-01-10 10:01:12]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-10 10:02:15]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484042453645750, "parent_rev":
"316b5bbb9d35045363bd3954f7c3a68951314cd8", "commit_rev":
"d38026c5a4b7a69552a4d7f41c37fdb735f0e283"}

[commit-bot: I haz the power, 2017-01-10 10:02:44]

Description was changed from

==========
Revert of Enabling kUseConsolidatedStartupFlow by default on trunk. (patchset
#23 id:440001 of https://codereview.chromium.org/2475913003/ )

Reason for revert:
StartupBrowserCreatorFirstRunTest.RestoreOnStartupURLsPolicySpecified failing on
Win10 Tests x64

BUG=679671

Original issue's description:
> Enabling kUseConsolidatedStartupFlow by default on trunk.
> 
> Code changes:
> - Disabling onboarding content for ChromeOS. Promotions for CrOS are
out-of-scope for this launch.
> - Ensuring that preference-specified tabs do not appear in new windows when a
tabbed browser already exists for the profile.
> 
> Test changes:
> - Removed 12 outdated tests
> - Fixed or updated 9 tests
> 
> Details of affected tests, and rationale, can be found in this doc:
https://docs.google.com/a/google.com/document/d/1PjAemEEFrl0gIDVQfnr1oAnHkb6D...
> 
> BUG=608875,314819,313856
> 
> Review-Url: https://codereview.chromium.org/2475913003
> Cr-Commit-Position: refs/heads/master@{#442487}
> Committed:
https://chromium.googlesource.com/chromium/src/+/a52322134679a349366417e04e50...

TBR=pkasting@chromium.org,rsesek@chromium.org,tmartino@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=608875,314819,313856
==========

to

==========
Revert of Enabling kUseConsolidatedStartupFlow by default on trunk. (patchset
#23 id:440001 of https://codereview.chromium.org/2475913003/ )

Reason for revert:
StartupBrowserCreatorFirstRunTest.RestoreOnStartupURLsPolicySpecified failing on
Win10 Tests x64

BUG=679671

Original issue's description:
> Enabling kUseConsolidatedStartupFlow by default on trunk.
> 
> Code changes:
> - Disabling onboarding content for ChromeOS. Promotions for CrOS are
out-of-scope for this launch.
> - Ensuring that preference-specified tabs do not appear in new windows when a
tabbed browser already exists for the profile.
> 
> Test changes:
> - Removed 12 outdated tests
> - Fixed or updated 9 tests
> 
> Details of affected tests, and rationale, can be found in this doc:
https://docs.google.com/a/google.com/document/d/1PjAemEEFrl0gIDVQfnr1oAnHkb6D...
> 
> BUG=608875,314819,313856
> 
> Review-Url: https://codereview.chromium.org/2475913003
> Cr-Commit-Position: refs/heads/master@{#442487}
> Committed:
https://chromium.googlesource.com/chromium/src/+/a52322134679a349366417e04e50...

TBR=pkasting@chromium.org,rsesek@chromium.org,tmartino@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=608875,314819,313856

Review-Url: https://codereview.chromium.org/2624443004
Cr-Commit-Position: refs/heads/master@{#442544}
Committed:
https://chromium.googlesource.com/chromium/src/+/d38026c5a4b7a69552a4d7f41c37...
==========

[commit-bot: I haz the power, 2017-01-10 10:02:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/d38026c5a4b7a69552a4d7f41c37...