DevTools: Expand protocol to allow setting DOM event breakpoints on a given event target.

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index 1fc2a2c329da2b9a546bbdb844a8ce3e7c595de5..0507f61404d992fadcbf0a7defab17c6b2f492e1 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -3348,14 +3348,16 @@
             {
                 "name": "setEventListenerBreakpoint",
                 "parameters": [
-                    { "name": "eventName", "type": "string", "description": "DOM Event name to stop on (any DOM event will do)." }
+                    { "name": "eventName", "type": "string", "description": "DOM Event name to stop on (any DOM event will do)." },
+                    { "name": "targetName", "type": "string", "optional": true, "description": "EventTarget interface name to stop on. If equal to <code>\"*\"</code> or not provided, will stop on any EventTarget.", "hidden": true }
                 ],
                 "description": "Sets breakpoint on particular DOM event."
             },
             {
                 "name": "removeEventListenerBreakpoint",
                 "parameters": [
-                    { "name": "eventName", "type": "string", "description": "Event name." }
+                    { "name": "eventName", "type": "string", "description": "Event name." },
+                    { "name": "targetName", "type": "string", "optional": true, "description": "EventTarget interface name.", "hidden": true }
                 ],
                 "description": "Removes breakpoint on particular DOM event."
             },