Revert of Fix formatting specifier for MSVC++ 2013 compatibility.

Revert of Fix formatting specifier for MSVC++ 2013 compatibility. (patchset #1 id:1 of https://codereview.chromium.org/1411663012/ )

Reason for revert:
Speculatively revert to try to fix this:

http://build.chromium.org/p/chromium.memory.fyi/builders/Windows%20Unit%20(DrMemory%20full)%20(2)

The error message is very obtuse, but seems to indicate it's some kind of string formatting issue. Feel free to revert the revert if it doesn't fix the issue.

Tommy

Original issue's description:
> Fix formatting specifier for MSVC++ 2013 compatibility.
>
> The use of %zu in a printf format string is non-standard.  This change
> is a follow-up to https://codereview.chromium.org/1417873007 to use the
> standard PRIuS macro instead.
>
> BUG=519022
> TBR=brucedawson@chromium.org
>
> Committed: https://crrev.com/1dbefc62bf1df69475bea39c5a41f7825c72a6b0
> Cr-Commit-Position: refs/heads/master@{#357582}

TBR=brucedawson@chromium.org,miu@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=519022
Committed: https://crrev.com/2054dbed4e6ade0129716eeffdcd9f2e4b34fd1c
Cr-Commit-Position: refs/heads/master@{#357956}

[tommycli, 2015-11-05 00:48:50]

Created Revert of Fix formatting specifier for MSVC++ 2013 compatibility.

[commit-bot: I haz the power, 2015-11-05 00:50:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1414883010/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1414883010/1

[commit-bot: I haz the power, 2015-11-05 00:53:16]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-05 00:54:18]

Patchset 1 (id:??) landed as
https://crrev.com/2054dbed4e6ade0129716eeffdcd9f2e4b34fd1c
Cr-Commit-Position: refs/heads/master@{#357956}

[miu, 2015-11-05 20:51:22]

Per off-line conversation, this wasn't the cause of the memory bot failures. 
Reverting the revert...

[miu, 2015-11-05 20:52:06]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1421463009/ by miu@chromium.org.

The reason for reverting is: Per off-line conversation, this wasn't the cause of
the memory bot failures.  Back into the tree you go!  :).