[OriginChip] If the field trial is enabled, omit the URL from the omnibox.

This is done by reusing the mechanisms established by the query_extraction field trial. The 'Show URL' action from the right-click menu is shown when either query_extraction or origin_chip is enabled.  If query terms are not shown, then an empty string is returned as the text from the toolbar model.

BUG=315944

Review URL: https://codereview.chromium.org/93233002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239845 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239845
Pepper: Convert PepperFileIOHost to use fileapi::QuotaReservation.

Adds a wrapper object, content::QuotaReservation, to hold fileapi objects that must live on a file task running thread.

Switches PepperFileIOHost to use the PepperFileSystemBrowserHost for quota
checking. PepperFileSystemBrowser host uses QuotaReservation to reserve
chunks of quota when PepperFileIOHost needs to Write or SetLength beyond
the current file size.

This is in preparation for moving Write over to the plugin side. This change
allows the plugin to write with much less communication with the quota
system in the browser.

BUG=194304

Review URL: https://codereview.chromium.org/93573002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239846 0039d316-1c4b-4281-b951-d872f2087c98
[Mac] Add active profile links in the new avatar bubble

Screenshot: https://docs.google.com/drawings/d/1nVOgSltiZcnDh493CQi41UbMQ2tBMOXlJqg_rOWm0WM/edit?usp=sharing

BUG=324036
TEST=Start chrome with --new-profile-management. Opening the avatar bubble in any of the three possible profile types (local, signed-in, guest) should show the correct links. All links but the "Manage accounts" one should perform an action.

Review URL: https://codereview.chromium.org/105463002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@239847 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 239847