Fix Check failure in SocketStream::DidRecevieData().
Fix Check failure in SocketStream::DidRecevieData().

Socket::Read() may return 0, that indicates end-of-file.
So, if we get 0 as result of Read(), finish the Socket Stream.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/329006

git-svn-id: http://src.chromium.org/svn/trunk/src@29886 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e39a3532e877abf1a42e968d0acae9f636716633
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