GitLab

1. Drop panels to the bottom edge of screen
2. Make then on top of the Dock

Also, change animation speed calc to make panels 'snappier'. That should make transition from 'minimized' to 'title-only' quite faster.
Add threshold for mouse drag that actually starts drag operation. This should remove spontaneous 'fail to minimize' effect.

BUG=104537,103095
TEST=Observe Panels on top of Dock, minimize them as needed.




Review URL: http://codereview.chromium.org/8574068

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110663 0039d316-1c4b-4281-b951-d872f2087c98