Revert of Add builders for tracing event's structural arguments

Revert of Add builders for tracing event's structural arguments (https://codereview.chromium.org/380763002/)

Reason for revert:
linux ASAN errors.

http://build.chromium.org/p/chromium.memory/builders/Linux%20ASan%20LSan%20Tests%20%281%29/builds/4493/steps/base_unittests/logs/stdio

Original issue's description:
> Add builders for tracing event's structural arguments
> 
> The new classes allow building JSON-like structural arguments. Current implementation uses base::Value as backing store but that can be replaced in the future with something more efficient without changing client code.
> 
> All clients of cc/debug/traced_value.h should eventually switch to use the new builders.
> 
> BUG=361045
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=286849

TBR=alph, caseq, dsinclair, nduca, willchan, yurys
NOTREECHECKS=true
NOTRY=true
BUG=361045
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=286862

[erikchen, 2014-07-31 18:52:47]

Created Revert of Add builders for tracing event's structural arguments

[commit-bot: I haz the power, 2014-07-31 18:54:39]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/erikchen@chromium.org/421183003/1

[commit-bot: I haz the power, 2014-07-31 18:54:40]

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

[commit-bot: I haz the power, 2014-07-31 18:54:41]

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 or
a provisional 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.

[erikchen, 2014-07-31 18:59:03]

The CQ bit was checked by erikchen@chromium.org

[commit-bot: I haz the power, 2014-07-31 18:59:53]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/erikchen@chromium.org/421183003/1

[commit-bot: I haz the power, 2014-07-31 19:02:13]

Change committed as 286862

[willchan no longer on Chromium, 2014-07-31 19:12:32]

lgtm


On Thu, Jul 31, 2014 at 12:02 PM, <commit-bot@chromium.org> wrote:

> Change committed as 286862
>
> https://codereview.chromium.org/421183003/
>

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[willchan no longer on Chromium, 2014-07-31 19:19:35]

lgtm

I always forget to use rietveld for this.