Revert of Revert of Revert of Add record-as-much-as-possible mode for about://tracing.

Revert of Revert of Revert of Add record-as-much-as-possible mode for about://tracing. (patchset #1 id:1 of https://codereview.chromium.org/1045123003/)

Reason for revert:
Still causes bloat (crbug.com/471610)

Original issue's description:
> Revert of Revert of Add record-as-much-as-possible mode for about://tracing. (patchset #1 id:1 of https://codereview.chromium.org/1043973003/)
>
> Reason for revert:
> Size increase in https://code.google.com/p/chromium/issues/detail?id=471610 is WAI.
>
> Original issue's description:
> > Revert of Add record-as-much-as-possible mode for about://tracing. (patchset #1 id:1 of https://codereview.chromium.org/1033223008/)
> >
> > Reason for revert:
> > Speculative revert to see if this cause 340kb increase in size (BUG=471610
)
> >
> > Original issue's description:
> > > Add record-as-much-as-possible mode for about://tracing.
> > >
> > > Update DEPS for trace-viewer to include the 3 tracing modes selector.
> > >
> > > BUG=396081
> > > TEST=
> > >
> > > Committed: https://crrev.com/8e752353b04c52cb3ba1d54b79fce241c0be53d3
> > > Cr-Commit-Position: refs/heads/master@{#322689}
> >
> > TBR=nduca@chromium.org,nduca@google.com
> >
> > BUG=396081
> >
> > Committed: https://crrev.com/bd28da0bfa3c2105937e61c6fe806c7ba7d43f01
> > Cr-Commit-Position: refs/heads/master@{#322853}
>
> TBR=nduca@chromium.org,nduca@google.com
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=396081
>
> Committed: https://crrev.com/78a183adc6ae3790c242ca1c2cdb39029cffd0c5
> Cr-Commit-Position: refs/heads/master@{#322913}

TBR=nduca@chromium.org,nduca@google.com,nednguyen@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=396081
Committed: https://crrev.com/fcaa659bec0ea35b1540699a0971d855d65c49ed
Cr-Commit-Position: refs/heads/master@{#323042}

[Nico, 2015-03-31 15:43:58]

Created Revert of Revert of Revert of Add record-as-much-as-possible mode for
about://tracing.

[commit-bot: I haz the power, 2015-03-31 15:44:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1049283002/1

[commit-bot: I haz the power, 2015-03-31 15:45:18]

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

[commit-bot: I haz the power, 2015-03-31 15:45:19]

Failed to apply patch for DEPS:
While running git apply --index -3 -p1;
  error: patch failed: DEPS:132
  error: repository lacks the necessary blob to fall back on 3-way merge.
  error: DEPS: patch does not apply

Patch:       DEPS
Index: DEPS
diff --git a/DEPS b/DEPS
index
8fa0a0f2a71c28d61c0e979ce36cd9d99dd53dc0..a4f66574dbe92e232d3b92c154dc2594e2c23ce4
100644
--- a/DEPS
+++ b/DEPS
@@ -132,7 +132,7 @@
    Var('chromium_git') + '/crashpad/crashpad.git' + '@' +
'5d0a133ecd6625f30c6491d502f12f26a0bef32d',
 
   'src/third_party/trace-viewer':
-   Var('chromium_git') + '/external/trace-viewer.git' + '@' +
'31e508019823eb4846821b61ad492e3ea7483d71',
+   Var('chromium_git') + '/external/trace-viewer.git' + '@' +
'ff20313e37892c3c7f20c88bb22ab6f6e65659ae',
 
   'src/third_party/WebKit':
    Var('chromium_git') + '/chromium/blink.git' + '@' +  Var('webkit_revision'),

[commit-bot: I haz the power, 2015-03-31 15:45:59]

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

[Nico, 2015-03-31 15:48:14]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2015-03-31 15:48:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1049283002/1

[commit-bot: I haz the power, 2015-03-31 15:49:36]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-31 15:50:22]

Patchset 1 (id:??) landed as
https://crrev.com/fcaa659bec0ea35b1540699a0971d855d65c49ed
Cr-Commit-Position: refs/heads/master@{#323042}