[DevTools] Move browser logging from Console domain to Log domain.

third_party/WebKit/LayoutTests/inspector-protocol/worker/resources/worker-with-throw.js

 function foo()
 {
     throw new Error();
 }
 
 function boo1()
 {
     foo();
 }
 
 function boo2()
 {
     foo();
 }
 
 onmessage = function(event) {
     if (event.data === 42)
         boo1();
     else
         boo2();
 };