gdata: Rework thread assertions in GDataCacheMap.
Previously, AssertAllowIO() was used to ensure that the functions
in GDataCacheMap are called on the blocking pool, but this was not
accurate. Instead, this patch introduces use of
SequencedWorkerPool::IsRunningSequenceOnCurrentThread().
BUG=131826
TEST=run tests
Review URL: https://chromiumcodereview.appspot.com/10538062
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@141313 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed
