Convert the charset, memory, and crypto interfaces to use the thunk system.

This removes a bunch of plumbing for the proxy and impl sides, and uses the
new macro system for registering the interface. This saves a lot of code and
a bunch of boilerplate files could be deleted.

Review URL: http://codereview.chromium.org/8159003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@104850 0039d316-1c4b-4281-b951-d872f2087c98
39 files changed