Pepper: Move JsonManifestMap to json_manifest.h

I'd like to break out OpenManifestEntry and some other functions out of
ppb_nacl_private_impl.cc so they're easier to reuse and less tightly-bound to
the PPB_NaCl_Private interface.

BUG=239656
R=dmichael@chromium.org

Review URL: https://codereview.chromium.org/310113002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@274860 0039d316-1c4b-4281-b951-d872f2087c98
3 files changed