Revert of Disable Print in the context menu when a modal dialog is shown

Revert of Disable Print in the context menu when a modal dialog is shown (patchset #3 id:40001 of https://codereview.chromium.org/2215123002/ )

Reason for revert:
chrome::FindBrowserWithWebContents(source_web_contents_) returns a nullptr for the PDF viewer, causing the Print option to be disabled for PDFs. We need to replace chrome::FindBrowserWithWebContents(source_web_contents_).

Original issue's description:
> Disable Print in the context menu when a modal dialog is shown
>
> Disable the "Print..." option in the page context menu when chrome::CanPrint
> is false. This disables printing when a modal dialog, such as the Media Router
> dialog, is being shown, just like the Print option in the hotdog menu.
>
> BUG=590650
>
> Committed: https://crrev.com/10d41a7cb5416afdb434e98c3b411284c0ab0be8
> Cr-Commit-Position: refs/heads/master@{#410138}

TBR=thestig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=590650
Committed: https://crrev.com/a89a3fe84309645f6cbf9d745bbd66a80853ffba
Cr-Commit-Position: refs/heads/master@{#410146}

[takumif, 2016-08-05 19:28:08]

The CQ bit was checked by takumif@chromium.org

[takumif, 2016-08-05 19:28:09]

Created Revert of Disable Print in the context menu when a modal dialog is shown

[commit-bot: I haz the power, 2016-08-05 19:28:37]

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, 2016-08-05 19:28:38]

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

[commit-bot: I haz the power, 2016-08-05 19:28:39]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Lei Zhang, 2016-08-05 19:37:34]

The CQ bit was checked by thestig@chromium.org

[Lei Zhang, 2016-08-05 19:37:34]

lgtm

[commit-bot: I haz the power, 2016-08-05 19:37:54]

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, 2016-08-05 19:39:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-05 19:40:47]

Description was changed from

==========
Revert of Disable Print in the context menu when a modal dialog is shown
(patchset #3 id:40001 of https://codereview.chromium.org/2215123002/ )

Reason for revert:
chrome::FindBrowserWithWebContents(source_web_contents_) returns a nullptr for
the PDF viewer, causing the Print option to be disabled for PDFs. We need to
replace chrome::FindBrowserWithWebContents(source_web_contents_).

Original issue's description:
> Disable Print in the context menu when a modal dialog is shown
> 
> Disable the "Print..." option in the page context menu when chrome::CanPrint
> is false. This disables printing when a modal dialog, such as the Media Router
> dialog, is being shown, just like the Print option in the hotdog menu.
> 
> BUG=590650
> 
> Committed: https://crrev.com/10d41a7cb5416afdb434e98c3b411284c0ab0be8
> Cr-Commit-Position: refs/heads/master@{#410138}

TBR=thestig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=590650
==========

to

==========
Revert of Disable Print in the context menu when a modal dialog is shown
(patchset #3 id:40001 of https://codereview.chromium.org/2215123002/ )

Reason for revert:
chrome::FindBrowserWithWebContents(source_web_contents_) returns a nullptr for
the PDF viewer, causing the Print option to be disabled for PDFs. We need to
replace chrome::FindBrowserWithWebContents(source_web_contents_).

Original issue's description:
> Disable Print in the context menu when a modal dialog is shown
>
> Disable the "Print..." option in the page context menu when chrome::CanPrint
> is false. This disables printing when a modal dialog, such as the Media Router
> dialog, is being shown, just like the Print option in the hotdog menu.
>
> BUG=590650
>
> Committed: https://crrev.com/10d41a7cb5416afdb434e98c3b411284c0ab0be8
> Cr-Commit-Position: refs/heads/master@{#410138}

TBR=thestig@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=590650

Committed: https://crrev.com/a89a3fe84309645f6cbf9d745bbd66a80853ffba
Cr-Commit-Position: refs/heads/master@{#410146}
==========

[commit-bot: I haz the power, 2016-08-05 19:40:48]

Patchset 1 (id:??) landed as
https://crrev.com/a89a3fe84309645f6cbf9d745bbd66a80853ffba
Cr-Commit-Position: refs/heads/master@{#410146}