Show notification when Drive offline mode is automatically enabled.

BUG=322409

Review URL: https://codereview.chromium.org/100283002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238609 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238609
In order to respect Win32 semantics (and appease Dr.Memory), stash the initial GDI bitmap created with the DC in BitmapPlatformDevice(win), and select it back into the DC just before destruction.

BUG=110783

Review URL: https://codereview.chromium.org/100393007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238610 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238610
Omnibox: HQP: Allow Matches in Scheme and TLD

Make this feature controlled by a field trial.  (I think the allowing
matches in scheme will have a big effect because it'll start letting
users see HQP suggestions for http://... inputs, which means they'll
be competing heavily with HUP.)

TBR=sky

BUG=247805

Review URL: https://codereview.chromium.org/100443003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238611 0039d316-1c4b-4281-b951-d872f2087c98
Un-refcount media::VideoFrame::MailboxHolder

Make the media::VideoFrame exclusively own its MailboxHolder for mailbox
video frames.

BUG=None
TEST=local build, run on CrOS snow

Review URL: https://codereview.chromium.org/100453002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@238612 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 238612