Tests auto-attahcing tab targets from browser targets.
Attached to target: {
    sessionId : <string>
    targetInfo : {
        attached : true
        browserContextId : <string>
        canAccessOpener : false
        targetId : <string>
        title : 127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
        type : tab
        url : http://127.0.0.1:8000/inspector-protocol/resources/inspector-protocol-page.html
    }
    waitingForDebugger : false
}
Response to runIfWaitingForDebugger: {
    id : <number>
    result : {
    }
    sessionId : <string>
}
Creating a new target, expect it paused
Attached to target: {
    sessionId : <string>
    targetInfo : {
        attached : true
        browserContextId : <string>
        canAccessOpener : false
        targetId : <string>
        title :
        type : tab
        url :
    }
    waitingForDebugger : true
}
Page attached via tab target: {
    sessionId : <string>
    targetInfo : {
        attached : true
        browserContextId : <string>
        canAccessOpener : false
        targetId : <string>
        title :
        type : page
        url : http://127.0.0.1:8000/inspector-protocol/resources/test-page.html
    }
    waitingForDebugger : false
}
Resuming target
Requesting http://127.0.0.1:8000/inspector-protocol/resources/test-page.html
Response to runIfWaitingForDebugger: {
    id : <number>
    result : {
    }
    sessionId : <string>
}
load event fired