Revert of Fix for URL opening code

Revert of Fix for URL opening code (patchset #18 id:340001 of https://codereview.chromium.org/2798143004/ )

Reason for revert:
Reverting this per the comments on crbug.com/735958

Original issue's description:
> Fix for tab opening code
> 
> When URL is opened from other program or local file system and session restored at the same time, opened URL is shown in a window behind restore session and not really visible to user.
> 
> This fixes opening URL for cases:
> 1. When Chromium is not started yet.
> 2. When Chromium is started, has window(s).
> 3. When chromium app is started, but has no windows.
> 
> for different startup settings:
> 1. Default startup.
> 2. Restore session on startup.
> 3. Open pre-defined set of URLs on startup.
> 
> 
> 
> R=sky@chromium.org,gab@chromium.org,avi@chromium.org
> 
> BUG=708873
> 
> Review-Url: https://codereview.chromium.org/2798143004
> Cr-Commit-Position: refs/heads/master@{#479684}
> Committed: https://chromium.googlesource.com/chromium/src/+/7afbc36eeee75f34c8ad3aa2f90cb6fc1f345463

TBR=avi@chromium.org,gab@chromium.org,sky@chromium.org,eugenebng@yandex-team.ru
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=708873

[dominicc (has gone to gerrit), 2017-06-30 00:56:44]

The CQ bit was checked by dominicc@chromium.org

[dominicc (has gone to gerrit), 2017-06-30 00:56:44]

Created Revert of Fix for URL opening code

[commit-bot: I haz the power, 2017-06-30 00:57:13]

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, 2017-06-30 00:59:58]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-06-30 00:59:59]

Try jobs failed on following builders:
  ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)

[gab, 2017-07-12 04:30:05]

On 2017/06/30 00:59:59, commit-bot: I haz the power wrote:
> Try jobs failed on following builders:
>   ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
>
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)

Status? Close?

[sky, 2017-07-12 15:45:43]

On 2017/07/12 04:30:05, gab (in-out til july17) wrote:
> On 2017/06/30 00:59:59, commit-bot: I haz the power wrote:
> > Try jobs failed on following builders:
> >   ios-simulator on master.tryserver.chromium.mac (JOB_FAILED,
> >
>
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios-simulator/bui...)
> 
> Status? Close?

I'm trying to revert the same patch here:
https://chromium-review.googlesource.com/c/567562/ . So, ya, I recommend closing
this one out.