[DevTools] Always send a copy of worker message through the page.

third_party/WebKit/Source/platform/v8_inspector/js_protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Runtime",
         "description": "Runtime domain exposes JavaScript runtime by means of remote evaluation and mirror objects. Evaluation results are returned as mirror object that expose object type, string representation and unique identifier that can be used for further object reference. Original objects are maintained in memory unless they are either explicitly released or are released along with the other objects in their object group.",
         "types": [
             {
                 "id": "ScriptId",
                 "type": "string",
                 "description": "Unique script identifier."
@@ skipping 723 matching lines @@
                 "id": "Timestamp",
                 "type": "number",
                 "description": "Number of seconds since epoch.",
                 "hidden": true
             },
             {
                 "id": "ConsoleMessage",
                 "type": "object",
                 "description": "Console message.",
                 "properties": [
-                    { "name": "source", "type": "string", "enum": ["xml", "javascript", "network", "console-api", "storage", "appcache", "rendering", "security", "other", "deprecation"], "description": "Message source." },
+                    { "name": "source", "type": "string", "enum": ["xml", "javascript", "network", "console-api", "storage", "appcache", "rendering", "security", "other", "deprecation", "worker"], "description": "Message source." },
                     { "name": "level", "type": "string", "enum": ["log", "warning", "error", "debug", "info"], "description": "Message severity." },
                     { "name": "text", "type": "string", "description": "Message text." },
                     { "name": "type", "type": "string", "optional": true, "enum": ["log", "dir", "dirxml", "table", "trace", "clear", "startGroup", "startGroupCollapsed", "endGroup", "assert", "profile", "profileEnd"], "description": "Console message type." },
                     { "name": "scriptId", "type": "string", "optional": true, "description": "Script ID of the message origin." },
                     { "name": "url", "type": "string", "optional": true, "description": "URL of the message origin." },
                     { "name": "line", "type": "integer", "optional": true, "description": "Line number in the resource that generated this message." },
                     { "name": "column", "type": "integer", "optional": true, "description": "Column number in the resource that generated this message." },
                     { "name": "repeatCount", "type": "integer", "optional": true, "description": "Repeat count for repeated messages." },
                     { "name": "parameters", "type": "array", "items": { "$ref": "Runtime.RemoteObject" }, "optional": true, "description": "Message parameters in case of the formatted message." },
                     { "name": "stack", "$ref": "Runtime.StackTrace", "optional": true, "description": "JavaScript stack trace for assertions and error messages." },
                     { "name": "networkRequestId", "type": "string", "optional": true, "description": "Identifier of the network request associated with this message." },
                     { "name": "timestamp", "$ref": "Timestamp", "description": "Timestamp, when this message was fired.", "hidden": true },
-                    { "name": "executionContextId", "$ref": "Runtime.ExecutionContextId", "optional": true, "description": "Identifier of the context where this message was created", "hidden": true }
+                    { "name": "executionContextId", "$ref": "Runtime.ExecutionContextId", "optional": true, "description": "Identifier of the context where this message was created", "hidden": true },
+                    { "name": "workerId", "type": "string", "optional": true, "description": "Identifier of the worker this message came from.", "hidden": true }
                 ]
             }
         ],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables console domain, sends the messages collected so far to the client by means of the <code>messageAdded</code> notification."
             },
             {
                 "name": "disable",
@@ skipping 246 matching lines @@
             {
                 "name": "heapStatsUpdate",
                 "description": "If heap objects tracking has been started then backend may send update for one or more fragments",
                 "parameters": [
                     { "name": "statsUpdate", "type": "array", "items": { "type": "integer" }, "description": "An array of triplets. Each triplet describes a fragment. The first integer is the fragment index, the second integer is a total count of objects for the fragment, the third integer is a total size of the objects for the fragment."}
                 ]
             }
         ]
     }]
 }