Force WebDatabase version to max(version, compatible version) before migration.


BUG=135342
TEST=WebDatabaseMigrationTest.*


Review URL: https://chromiumcodereview.appspot.com/10696127

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@145665 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed