Fix binary size increase because of class name loading.

Fix binary size increase because of class name loading.

This CL puts the classname under GC_PROFILING flag since it increases
binary size in production builds.

BUG=527054
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=201671

[ssid, 2015-09-02 13:14:59]

ssid@chromium.org changed reviewers:
+ haraken@chromium.org, kouhei@chromium.org

[ssid, 2015-09-02 13:14:59]

PTAL, Thanks.

[haraken, 2015-09-02 13:36:22]

LGTM, thanks for the fix!

It's unfortunate that we can't visualize class names in memory-infra in
production builds. Maybe can we try to get the name mapping at the first memory
dump?

[ssid, 2015-09-02 22:01:48]

The CQ bit was checked by ssid@chromium.org

[ssid, 2015-09-02 22:01:48]

The patchset sent to the CQ was uploaded after l-g-t-m from haraken@chromium.org
Link to the patchset: https://codereview.chromium.org/1317563005/#ps20001
(title: "fix build.")

[commit-bot: I haz the power, 2015-09-02 22:02:09]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1317563005/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1317563005/20001

[commit-bot: I haz the power, 2015-09-02 22:07:23]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=201671

[kouhei (in TOK), 2015-09-02 22:41:03]

lgtm

[sof, 2015-09-03 07:14:19]

sigbjornf@opera.com changed reviewers:
+ sigbjornf@opera.com

[sof, 2015-09-03 07:14:20]

https://codereview.chromium.org/1317563005/diff/20001/Source/platform/heap/Th...
File Source/platform/heap/ThreadState.cpp (right):

https://codereview.chromium.org/1317563005/diff/20001/Source/platform/heap/Th...
Source/platform/heap/ThreadState.cpp:1498: dumpName +=
Heap::gcInfo(gcInfoIndex)->className();
Did this compile? We don't provide += over String, right?

(Addressed by https://codereview.chromium.org/1308053007/ )