Fix NFC related crash in DBusThreadManager destructor.

DBusThreadManager declared its pointers to NfcAdapterClient and
NfcManagerClient in the incorrect order, without respecting the
NfcAdapterClient dependency on NfcManagerClient. Fixed it, so that
NfcManagerClient will be cleaned up after NfcAdapterClient.

BUG=312243
R=stevenjb@chromium.org

Review URL: https://codereview.chromium.org/49273002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231403 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 231403
Added support for a new HTTP response header called Chrome-Proxy, which is restricted to only the data compression proxy. The header carries a comma-separated list of instructions for proxy/Chrome interaction. This change introduces one instruction, "bypass," which specifies a number of seconds that Chrome should bypass the proxy.

BUG=306631

Review URL: https://codereview.chromium.org/26515005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231404 0039d316-1c4b-4281-b951-d872f2087c98
Make .pdf never "dangerous" to download.

BUG=148492
TEST=Downloading a .pdf file never incurs the "this file is dangerous"
warning.

Review URL: https://codereview.chromium.org/27449004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231405 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 231405