2010-06-12 Trunk builds
Fixes:
- Fixed: 566245 - Merge nsWebM decoder to mozilla-central.
- Fixed: 449292 - Opentype font shaping using Harfbuzz. (Only works on Mac and Windows, and preffed off by default)
- Fixed: 555353 - Direct2D needs to clear the dirty area. (If you're using Vista or Win 7, try enabling hardware acceleration now that this bug is fixed.)
- Fixed: 387859 - Sessionstore should use native json to parse session data.
