CpuProfiler: collect deopt pc offset for further usage in the inlined functions stack resolver.

CpuProfiler: collect deopt pc offset for further usage in the inlined functions stack resolver.

this is a fourth part of https://codereview.chromium.org/1012633002

In another patch I'll collect the inlining tree in cpu-profiler CodeEntry
Each leaf for an inlined function will have a list of deopts and their pc offsets.
So when deopt happens I'll be able to map the deopt pc_offset into
inlined function id and point the web developer to the exact place
where deopt has happened even if it was in the inlined function.

BUG=chromium:452067
LOG=n

Committed: https://crrev.com/33514ec25d910317d2ba7e1491b5e7e62cefb963
Cr-Commit-Position: refs/heads/master@{#27247}

[loislo, 2015-03-17 10:15:49]

loislo@chromium.org changed reviewers:
+ alph@chromium.org, yurys@chromium.org

[loislo, 2015-03-17 10:15:50]

PTAL

[yurys, 2015-03-17 10:36:58]

lgtm

[loislo, 2015-03-17 10:39:54]

loislo@chromium.org changed reviewers:
+ svenpanne@chromium.org

[loislo, 2015-03-17 10:39:54]

ptal

[Sven Panne, 2015-03-17 15:24:05]

LGTM with a comment

https://codereview.chromium.org/1013753007/diff/1/src/cpu-profiler.h
File src/cpu-profiler.h (right):

https://codereview.chromium.org/1013753007/diff/1/src/cpu-profiler.h#newcode83
src/cpu-profiler.h:83: int pc_offset;
I would recommend using size_t instead of int, but that's your call...

[loislo, 2015-03-17 17:36:39]

comments addressed

https://codereview.chromium.org/1013753007/diff/1/src/cpu-profiler.h
File src/cpu-profiler.h (right):

https://codereview.chromium.org/1013753007/diff/1/src/cpu-profiler.h#newcode83
src/cpu-profiler.h:83: int pc_offset;
On 2015/03/17 at 15:24:05, Sven Panne wrote:
> I would recommend using size_t instead of int, but that's your call...

done

[loislo, 2015-03-17 17:37:37]

The CQ bit was checked by loislo@chromium.org

[loislo, 2015-03-17 17:37:37]

The patchset sent to the CQ was uploaded after l-g-t-m from
svenpanne@chromium.org, yurys@chromium.org
Link to the patchset: https://codereview.chromium.org/1013753007/#ps20001
(title: "comments addressed")

[commit-bot: I haz the power, 2015-03-17 17:37:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1013753007/20001

[commit-bot: I haz the power, 2015-03-17 18:50:06]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-17 18:50:18]

Patchset 2 (id:??) landed as
https://crrev.com/33514ec25d910317d2ba7e1491b5e7e62cefb963
Cr-Commit-Position: refs/heads/master@{#27247}