ebf7184f6f68e5b60a5247b65bb008a7b3ca1fb0 - chromium/src

commit	ebf7184f6f68e5b60a5247b65bb008a7b3ca1fb0	[log] [tgz]
author	brettw <[email protected]>	Tue Apr 18 21:10:53 2017
committer	Commit bot <[email protected]>	Tue Apr 18 21:10:53 2017
tree	58296c6acc4baba6bc2eb1337580400a16e04798
parent	31b31da235decd6c593745e98f77b55ff9270cb4 [diff]

Improve profile stats performace.

Collecting stats on prefs can take a lot of allocations and times to copy the whole preferences tree.

Adds an iterator-with-callback API to read the preferences without copying. This is now used in prefs stats. The other two similar APIs in the preferences service have been coalesced with a flag controlling whether you want default prefs.

BUG=708793

Review-Url: https://codereview.chromium.org/2799143002
Cr-Commit-Position: refs/heads/master@{#465374}

chrome/browser/chromeos/preferences_chromeos_browsertest.cc[diff]
chrome/browser/feedback/system_logs/log_sources/chrome_internal_log_source.cc[diff]
chrome/browser/prefs/pref_functional_browsertest.cc[diff]
chrome/browser/profiles/profile_statistics_aggregator.cc[diff]
chrome/browser/profiles/profile_statistics_aggregator.h[diff]
chrome/browser/ui/webui/local_state/local_state_ui.cc[diff]
chrome/browser/ui/webui/prefs_internals_source.cc[diff]
components/prefs/pref_service.cc[diff]
components/prefs/pref_service.h[diff]

9 files changed