Route JS Error Info From Blink to Chrome

Source/devtools/protocol.json

Index: Source/devtools/protocol.json
diff --git a/Source/devtools/protocol.json b/Source/devtools/protocol.json
index 91f4213cb56167df7a95e8b28f35f1cffeb81bf8..1934575cc35a8be66e8971242a2e786b66889558 100644
--- a/Source/devtools/protocol.json
+++ b/Source/devtools/protocol.json
@@ -734,6 +734,7 @@
                     { "name": "level", "type": "string", "enum": ["log", "warning", "error", "debug"], "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", "timing", "profile", "profileEnd"], "description": "Console message type." },
+                    { "name": "executionContextURL", "type": "string", "optional": true, "description": "The context url in which error was caused." },

[yurys, 2013/07/26 09:17:21]

We use "Runtime.ExecutionContextId" to reference a context, can we do the same
here?

                     { "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." },