[Mac] Re-enable pinned tabs; add support for mini-tabs and phantom tabs.
This CL rewires the old support for pinned tabs to support mini-tabs. This also
removes the kEnablePinnedTabs browser default now that all platforms support it.
Note that pinning is now only accessible through the context menu; drag-to-pin
has been removed.
BUG=36798, 32845
TEST=Right-click and pin two tabs. Test dragging on and off and around the tab strip.
TEST=Cmd+W a pinned tab and it should go phantom (renderer closes down) and the tab is made alpha.
Review URL: http://codereview.chromium.org/1119005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@42548 0039d316-1c4b-4281-b951-d872f2087c98
13 files changed
