Changed Mac, Linux and Win Official Chrome build to drop default app CRXs in

Changed Mac, Linux and Win Official Chrome build to drop default app CRXs in
the build/installer output.

This change undoes the revert of 99878.  This change was originally reverted
because it was decided to push this change to M16.

BUG=94920
TEST=Do an Official build in mac, linux and win. Ensure that after installing
the app, you can find the default apps under the install's directory
structure. For win, this is under a default_apps directory, for mac, this is
under a "Default Apps" directory.
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=103078

[robertshield, 2011-09-26 19:44:09]

On 2011/09/26 19:14:11, Roger Tawa wrote:

Windows portion LGTM. 

For maintainability, you might want to declare the list of default_apps
extension files somewhere common.

[Mark Mentovai, 2011-09-26 19:46:47]

LGTM

[Michael Moss, 2011-09-27 15:46:28]

LGTM

[Roger Tawa OOO till Jul 10th, 2011-09-27 18:49:32]

Thanks for the tip Robert.  In fact, it made me realize I had forgotten a file
from the CL!

Updated as you suggested.  Is there a way in gyp to further reduce redundancy in
the common.gypi file?

[robertshield, 2011-09-27 20:07:14]

LGTM

http://codereview.chromium.org/8041033/diff/5001/chrome/browser/resources/def...
File chrome/browser/resources/default_apps/external_extensions.json (right):

http://codereview.chromium.org/8041033/diff/5001/chrome/browser/resources/def...
chrome/browser/resources/default_apps/external_extensions.json:2:
"blpcfgokakmgnkcojhhkbfbldkacnbeo" : {
perhaps a comment here explaining what this file is?

[Roger Tawa OOO till Jul 10th, 2011-09-27 20:57:30]

Thanks Robert.

http://codereview.chromium.org/8041033/diff/5001/chrome/browser/resources/def...
File chrome/browser/resources/default_apps/external_extensions.json (right):

http://codereview.chromium.org/8041033/diff/5001/chrome/browser/resources/def...
chrome/browser/resources/default_apps/external_extensions.json:2:
"blpcfgokakmgnkcojhhkbfbldkacnbeo" : {
On 2011/09/27 20:07:14, robertshield wrote:
> perhaps a comment here explaining what this file is?

I don't think comments are used in external_extensions.json, but if they are
I'll add some.  This file maps extension ids to the relative path (relative to
this file) to the crx that implements that extension.