Add "isolate" for content_unittests.

BUG=

Review URL: https://codereview.chromium.org/27714002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230187 0039d316-1c4b-4281-b951-d872f2087c98
Move IncognitoModePolicyHandler to live in chrome/browser/profiles.

This facilitates the refactoring of chrome/browser/policy into a layered
component.

BUG=271392

Review URL: https://codereview.chromium.org/32143002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230188 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230187
SVN changes up to revision 230188
fix for intsafe.h in static_library

Was previously inside a link_settings block which seems to work in
shared_library but not in static_library (!).

TBR=tapted@chromium.org
BUG=308740, 310197

Review URL: https://codereview.chromium.org/31373004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230190 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 230190