Preface various WebPush related logging strings with WebPush: Since handling a WebPush message is a complicated back and forth between WebCore, WebKit, and the Application code, and handling a message logically spans multiple logging channels even within the same project (e.g. WebCore), it'll be very useful to develop and debug with a single string you can always find relevant logging statements.
<rdar://problem/104504173>
Pull request: https://github.com/WebKit/WebKit/pull/8923