Prevent an extra copy of data types that get passed into IPC messages when
sending them.  This makes it so that types sendable via IPC no longer need
copy constructors.

BUG=12296
Review URL: http://codereview.chromium.org/112042

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16497 0039d316-1c4b-4281-b951-d872f2087c98
7 files changed