Move IPC::MessageFilter and router to a separate file
There are no changes in implementation in this CL. This is in preparation
for making IPC::Channel support filters on the Channel's thread.
BUG=364241
TBR=cpu@chromium.org,nduca@chromium.org
cpu: OWNERS for win8
nduca: OWNERS for components/tracing
Review URL: https://codereview.chromium.org/245443005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@266057 0039d316-1c4b-4281-b951-d872f2087c98
CrOS-Libchrome-Original-Commit: 7412204291319c7099206d8e4964b981737e2170
11 files changed