Revert of Revert "[wrapper-tracing] Bail out tracing for empty handles"

Revert of Revert "[wrapper-tracing] Bail out tracing for empty handles" (patchset #1 id:1 of https://codereview.chromium.org/2840013003/ )

Reason for revert:
This revert breaks compile:

../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.cpp:262:8: error: use of undeclared identifier 'm_tracingInProgress'; did you mean 'tracing_in_progress_'?
  if (!m_tracingInProgress)
       ^~~~~~~~~~~~~~~~~~~
       tracing_in_progress_
../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.h:194:8: note: 'tracing_in_progress_' declared here
  bool tracing_in_progress_ = false;
       ^
1 error generated.

Original issue's description:
> Revert "[wrapper-tracing] Bail out tracing for empty handles"
> 
> This reverts commit fc1c3f831aeceee5e63501e8c700003fc1802b2b.
> 
> TBR=mlippautz@chrommium.org
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2840013003
> Cr-Commit-Position: refs/heads/master@{#467214}
> Committed: https://chromium.googlesource.com/chromium/src/+/79f22e60f857a83a592216c33a47035268c2cda7

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

Review-Url: https://codereview.chromium.org/2839023004
Cr-Commit-Position: refs/heads/master@{#467218}
Committed: https://chromium.googlesource.com/chromium/src/+/84d4dfb32ea85d528373295087f10d0766d556b6

[alancutter (OOO until 2018), 2017-04-26 03:04:39]

The CQ bit was checked by alancutter@chromium.org

[alancutter (OOO until 2018), 2017-04-26 03:04:39]

Created Revert of Revert "[wrapper-tracing] Bail out tracing for empty handles"

[commit-bot: I haz the power, 2017-04-26 03:05:11]

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, 2017-04-26 03:05:39]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493175879180720, "parent_rev":
"159f2ecc0dc6142c93206707717e20addd19e094", "commit_rev":
"84d4dfb32ea85d528373295087f10d0766d556b6"}

[haraken, 2017-04-26 03:05:44]

LGTM, thanks for the revert!

[commit-bot: I haz the power, 2017-04-26 03:06:20]

Description was changed from

==========
Revert of Revert "[wrapper-tracing] Bail out tracing for empty handles"
(patchset #1 id:1 of https://codereview.chromium.org/2840013003/ )

Reason for revert:
This revert breaks compile:

../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.cpp:262:8:
error: use of undeclared identifier 'm_tracingInProgress'; did you mean
'tracing_in_progress_'?
  if (!m_tracingInProgress)
       ^~~~~~~~~~~~~~~~~~~
       tracing_in_progress_
../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.h:194:8:
note: 'tracing_in_progress_' declared here
  bool tracing_in_progress_ = false;
       ^
1 error generated.

Original issue's description:
> Revert "[wrapper-tracing] Bail out tracing for empty handles"
> 
> This reverts commit fc1c3f831aeceee5e63501e8c700003fc1802b2b.
> 
> TBR=mlippautz@chrommium.org
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2840013003
> Cr-Commit-Position: refs/heads/master@{#467214}
> Committed:
https://chromium.googlesource.com/chromium/src/+/79f22e60f857a83a592216c33a47...

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

to

==========
Revert of Revert "[wrapper-tracing] Bail out tracing for empty handles"
(patchset #1 id:1 of https://codereview.chromium.org/2840013003/ )

Reason for revert:
This revert breaks compile:

../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.cpp:262:8:
error: use of undeclared identifier 'm_tracingInProgress'; did you mean
'tracing_in_progress_'?
  if (!m_tracingInProgress)
       ^~~~~~~~~~~~~~~~~~~
       tracing_in_progress_
../../third_party/WebKit/Source/bindings/core/v8/ScriptWrappableVisitor.h:194:8:
note: 'tracing_in_progress_' declared here
  bool tracing_in_progress_ = false;
       ^
1 error generated.

Original issue's description:
> Revert "[wrapper-tracing] Bail out tracing for empty handles"
> 
> This reverts commit fc1c3f831aeceee5e63501e8c700003fc1802b2b.
> 
> TBR=mlippautz@chrommium.org
> NOTRY=true
> 
> Review-Url: https://codereview.chromium.org/2840013003
> Cr-Commit-Position: refs/heads/master@{#467214}
> Committed:
https://chromium.googlesource.com/chromium/src/+/79f22e60f857a83a592216c33a47...

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

Review-Url: https://codereview.chromium.org/2839023004
Cr-Commit-Position: refs/heads/master@{#467218}
Committed:
https://chromium.googlesource.com/chromium/src/+/84d4dfb32ea85d528373295087f1...
==========

[commit-bot: I haz the power, 2017-04-26 03:06:21]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/84d4dfb32ea85d528373295087f1...