Revert of Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt.

Revert of Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt. (patchset #6 id:140001 of https://codereview.chromium.org/821703005/)

Reason for revert:
A bisect proved that this change caused
https://code.google.com/p/chromium/issues/detail?id=446729

Original issue's description:
> Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt.
>
> This relands http://crrev.com/694213002
>
> In the PdfMetafileSkia class, Instead of storing a
> SkPDFDocument, store a vector of pages as
> SkPictures.  This allows access to individual at any
> time.  When FinishDocument() is called, use the
> SkDocument API to print all pages to PDF.
>
> In PrintWebViewHelper::RenderPageContent, skip clipping
> content to content area, since Windows printing prints
> content just outside of the content area, as noted in
> http://crbug.com/434079 .
>
> BUG=278148
>
> Committed: https://crrev.com/18387e7ebb0eae6e4944e841d63ea058adab6e11
> Cr-Commit-Position: refs/heads/master@{#310032}

TBR=vitalybuka@chromium.org,reed@google.com,danakj@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=278148
BUG=446729
Committed: https://crrev.com/5c2d68a04c4f5ce03f941656ad940b938dbf9f64
Cr-Commit-Position: refs/heads/master@{#310517}

[hal.canary, 2015-01-08 16:51:41]

Created Revert of Remove calls to deprecated SkPDFDevice and SkPDFDocuemnt.

[commit-bot: I haz the power, 2015-01-08 16:52:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/788053006/1

[commit-bot: I haz the power, 2015-01-08 16:52:57]

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

[commit-bot: I haz the power, 2015-01-08 16:52:58]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM 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.

[reed1, 2015-01-08 17:00:23]

lgtm

[reed1, 2015-01-08 17:00:37]

The CQ bit was checked by reed@google.com

[commit-bot: I haz the power, 2015-01-08 17:02:13]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/788053006/1

[commit-bot: I haz the power, 2015-01-08 17:03:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-01-08 17:04:39]

Patchset 1 (id:??) landed as
https://crrev.com/5c2d68a04c4f5ce03f941656ad940b938dbf9f64
Cr-Commit-Position: refs/heads/master@{#310517}