Redeclared the sha1HashSize variable in Webkit/Source/wtf/SHA1.h instead of WebKit/Source/modules/websockets/WebSocketHandshake.cpp

Review URL: https://codereview.chromium.org/139193002

git-svn-id: svn://svn.chromium.org/blink/trunk@168781 bbb929c8-8fbe-4397-9dbb-9b2b20218538