Change _ITERATOR_DEBUG_LEVEL to 1 on Release builds

VS2010 changed the default to 0 meaning weaker checks in our
release builds.  This commit changes it back again.

BUG=289691

Review URL: https://codereview.chromium.org/23464081

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229222 0039d316-1c4b-4281-b951-d872f2087c98
Moved some functions off ExtensionService into a new file extension_util.

These functions do not need any internal state of ExtensionService, so
do not need to be on the class itself. This makes it easier to understand
what ExtensionService is doing (as it now does less) and easier to change.

TBR=sky@chromium.org
BUG=298537

Review URL: https://codereview.chromium.org/25366003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229223 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229222
qcms: disable VS2013-only warnings

TBR=cpu@chromium.org
BUG=288948

Review URL: https://codereview.chromium.org/26312008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229224 0039d316-1c4b-4281-b951-d872f2087c98
Fix back-after-redirect for renderer-initiated cross-process redirects.

BUG=308444
Test=Click Back after visiting Drive from NTP when not signed into Google.

Review URL: https://codereview.chromium.org/26396004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229225 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 229225