Add `disposition` to SecurityPolicyViolationEvent

third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl

Index: third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl
diff --git a/third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl b/third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl
index 2b5ae449f5b7d17e3d1a63fc2e78dcfffa321ce5..66ab49fc13f4656544f396475c07c3e4896191ae 100644
--- a/third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl
+++ b/third_party/WebKit/Source/core/events/SecurityPolicyViolationEvent.idl
@@ -22,7 +22,11 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// http://w3c.github.io/webappsec/specs/content-security-policy/#securitypolicyviolationevent-interface
+// https://w3c.github.io/webappsec-csp/#idl-index
+
+enum SecurityPolicyViolationEventDisposition {
+    "enforce", "report"
+};
 
 [
     Constructor(DOMString type, optional SecurityPolicyViolationEventInit eventInitDict),
@@ -35,6 +39,7 @@
     readonly attribute DOMString violatedDirective;
     readonly attribute DOMString effectiveDirective;
     readonly attribute DOMString originalPolicy;
+    readonly attribute SecurityPolicyViolationEventDisposition disposition;
     readonly attribute DOMString sourceFile;
     [Measure] readonly attribute unsigned short statusCode;
     readonly attribute long      lineNumber;