Initialize SpdyStreamMember to kInitialWindowSize.
Initialize SpdyStreamMember to kInitialWindowSize.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/3081004

git-svn-id: http://src.chromium.org/svn/trunk/src@54333 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: bfa544346fbeebaa82b3cd57f9bdd92fbc1aba3c
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser