GitLab

Merge these redundant classes and their unit tests.
Do not try_mirroring_arrow with dummy anchor rects.
Deprecate unused allow_bubble_offscreen bubble flag.
Replace GetArrowLocation virtual with simple setter/getter pair.
Return anchor view bounds in BubbleDelegateView::GetAnchorRect.
Other refactoring and simplification.

BUG=106050
TEST=Bubbles are anchored correctly with their arrows in the right location.

Review URL: http://codereview.chromium.org/8870003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@114598 0039d316-1c4b-4281-b951-d872f2087c98