Verifies multiple CSP issues in report-only mode.

Inspector issue: {
    issue : {
        code : ContentSecurityPolicyIssue
        details : {
            contentSecurityPolicyIssueDetails : {
                blockedURL : https://devtools.test:8443/inspector-protocol/resources/style.css
                contentSecurityPolicyViolationType : kURLViolation
                isReportOnly : true
                sourceCodeLocation : {
                    columnNumber : 0
                    lineNumber : 2
                    url : https://devtools.test:8443/inspector-protocol/resources/content-security-policy-issue-report-only.php
                }
                violatedDirective : style-src-elem
            }
        }
    }
}
Inspector issue: {
    issue : {
        code : ContentSecurityPolicyIssue
        details : {
            contentSecurityPolicyIssueDetails : {
                contentSecurityPolicyViolationType : kEvalViolation
                isReportOnly : true
                sourceCodeLocation : {
                    columnNumber : 13
                    lineNumber : 4
                    scriptId : <string>
                    url : https://devtools.test:8443/inspector-protocol/resources/content-security-policy-issue-report-only.php
                }
                violatedDirective : script-src
            }
        }
    }
}
Inspector issue: {
    issue : {
        code : ContentSecurityPolicyIssue
        details : {
            contentSecurityPolicyIssueDetails : {
                contentSecurityPolicyViolationType : kInlineViolation
                isReportOnly : true
                sourceCodeLocation : {
                    columnNumber : 0
                    lineNumber : 5
                    url : https://devtools.test:8443/inspector-protocol/resources/content-security-policy-issue-report-only.php
                }
                violatedDirective : style-src-attr
                violatingNodeId : <number>
            }
        }
    }
}