Revert 168549 - Revert 167701 - Make LeveldbValueStore open its leveldb database lazily.

Reason: Possible cause of performance regression.

Reason: It did not cause a regression.

BUG=158971
TBR=ben

Review URL: https://chromiumcodereview.appspot.com/11365244

[email protected]

[email protected]
Review URL: https://codereview.chromium.org/11280069

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168615 0039d316-1c4b-4281-b951-d872f2087c98
15 files changed