[Mac] packaging process cleanup: Net of this is the zip off the official buil...

[Mac] packaging process cleanup: Net of this is the zip off the official builder will have everything for packaging so the final signing/dmg creation is self contained instead of having to live in both places.
- Move all the installer related bits into the installer folder
- Add the collection of these bits into a specific target
- Collect the internal bits also during the installer target

BUG=42635
TEST=none

Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=48732

[Mark Mentovai, 2010-06-02 16:26:14]

LGTM

http://codereview.chromium.org/2417007/diff/1/3
File chrome/chrome_installer.gypi (right):

http://codereview.chromium.org/2417007/diff/1/3#newcode755
chrome/chrome_installer.gypi:755: ['OS=="mac"', {
Self-contained here. Good. I’m not rereading this section, I trust that you took
the existing working bits and glued it all together.