Unify logic of stack trace generation for extension errors

extensions/renderer/resources/extension_custom_bindings.js

Index: extensions/renderer/resources/extension_custom_bindings.js
diff --git a/extensions/renderer/resources/extension_custom_bindings.js b/extensions/renderer/resources/extension_custom_bindings.js
index d114f527f56e92418cb4c8b54a4623b7d3a7b145..355274c21255accc3d3583e7a0c56b888e8e34af 100644
--- a/extensions/renderer/resources/extension_custom_bindings.js
+++ b/extensions/renderer/resources/extension_custom_bindings.js
@@ -92,7 +92,7 @@ binding.registerCustomHook(function(bindingsAPI, extensionId) {
   apiFunctions.setHandleRequest('sendRequest',
                                 function(targetId, request, responseCallback) {
     if (sendRequestIsDisabled)
-      throw new Error(sendRequestIsDisabled);
+      throw new $Error.self(sendRequestIsDisabled);
     var port = chrome.runtime.connect(targetId || extensionId,
                                       {name: messaging.kRequestChannel});
     messaging.sendMessageImpl(port, request, responseCallback);
@@ -100,11 +100,11 @@ binding.registerCustomHook(function(bindingsAPI, extensionId) {
 
   if (sendRequestIsDisabled) {
     extension.onRequest.addListener = function() {
-      throw new Error(sendRequestIsDisabled);
+      throw new $Error.self(sendRequestIsDisabled);
     };
     if (contextType == 'BLESSED_EXTENSION') {
       extension.onRequestExternal.addListener = function() {
-        throw new Error(sendRequestIsDisabled);
+        throw new $Error.self(sendRequestIsDisabled);

[not at google - send to devlin, 2014/08/19 16:45:55]

All of these: new Error()

       };
     }
   }