Instrumenting InitializeInternal to find jank

Instrumenting InitializeInternal to find jank.

Prior instrumentations showed that ProfileIOData::Init's jank happens in the call to InitializeInternal (8.6 jph).

Instrumenting InitializeInternal.

BUG=436671
Committed: https://crrev.com/03f3dc19b2ead69e4730367a5b15596e198520ee
Cr-Commit-Position: refs/heads/master@{#308659}

[vadimt, 2014-12-16 19:18:30]

vadimt@chromium.org changed reviewers:
+ mmenke@chromium.org

[vadimt, 2014-12-16 19:18:31]

mmenke@, please review

[mmenke, 2014-12-16 19:25:19]

LGTM

https://codereview.chromium.org/790853007/diff/1/chrome/browser/profiles/prof...
File chrome/browser/profiles/profile_impl_io_data.cc (right):

https://codereview.chromium.org/790853007/diff/1/chrome/browser/profiles/prof...
chrome/browser/profiles/profile_impl_io_data.cc:607: profile_params,
main_backend);
optional:  Suggest one here, too, just to cache creation is separated out.  Due
to lazy creation, don't think it's actually that heavy weight, but it's
basically where we create the lower half of the network stack as well as the
cache, so could be hidden demons there.

[vadimt, 2014-12-16 19:29:20]

https://codereview.chromium.org/790853007/diff/1/chrome/browser/profiles/prof...
File chrome/browser/profiles/profile_impl_io_data.cc (right):

https://codereview.chromium.org/790853007/diff/1/chrome/browser/profiles/prof...
chrome/browser/profiles/profile_impl_io_data.cc:607: profile_params,
main_backend);
On 2014/12/16 19:25:19, mmenke wrote:
> optional:  Suggest one here, too, just to cache creation is separated out. 
Due
> to lazy creation, don't think it's actually that heavy weight, but it's
> basically where we create the lower half of the network stack as well as the
> cache, so could be hidden demons there.

Done.

[vadimt, 2014-12-16 19:29:24]

The CQ bit was checked by vadimt@chromium.org

[commit-bot: I haz the power, 2014-12-16 19:31:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/790853007/20001

[commit-bot: I haz the power, 2014-12-16 20:27:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-12-16 20:28:52]

Patchset 2 (id:??) landed as
https://crrev.com/03f3dc19b2ead69e4730367a5b15596e198520ee
Cr-Commit-Position: refs/heads/master@{#308659}