Fix a bunch of Coverity defects - class members not initialized in the constructor.

CID=14533,14036,9275,9271,4156,4153,4151,1666,1665,1618,1617,1616,1615

Review URL: https://codereview.appspot.com/5940049

git-svn-id: http://skia.googlecode.com/svn/trunk@3532 2bbb7eff-a529-9590-31e7-b0007b416f81
10 files changed