Revert 230837 "Add structure packing support for mojo modules"

> Add structure packing support for mojo modules
> 
> BUG=None
> TEST=new tests
> R=viettrungluu@chromium.org, viettrungluu
> 
> Review URL: https://codereview.chromium.org/27226006

Checkperms is failing.

TBR=davemoore@chromium.org

Review URL: https://codereview.chromium.org/42453002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230861 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230861
Fix crash when install two extensions at same time.

BUG=308852

Review URL: https://codereview.chromium.org/32803002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230862 0039d316-1c4b-4281-b951-d872f2087c98
Valgrind: Suppress leak in WTF::establishIdentifierForPthreadHandle on Linux as well.

BUG=310351
NOTRY=true

Review URL: https://codereview.chromium.org/41963002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230863 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230862
SVN changes up to revision 230863