Unify logic of stack trace generation for extension errors

extensions/renderer/resources/runtime_custom_bindings.js

Index: extensions/renderer/resources/runtime_custom_bindings.js
diff --git a/extensions/renderer/resources/runtime_custom_bindings.js b/extensions/renderer/resources/runtime_custom_bindings.js
index 2f0cb4940c4476d56ae4fe1969cb2533d2539d28..1864a86309d32a8253f176702de4433280f6aff1 100644
--- a/extensions/renderer/resources/runtime_custom_bindings.js
+++ b/extensions/renderer/resources/runtime_custom_bindings.js
@@ -139,14 +139,14 @@ binding.registerCustomHook(function(binding, id, contextType) {
       connectInfo = arguments[nextArg++];
 
     if (nextArg != arguments.length)
-      throw new Error('Invalid arguments to connect.');
+      throw new $Error.self('Invalid arguments to connect.');

[not at google - send to devlin, 2014/08/19 16:45:56]

new Error()

     return [targetId, connectInfo];
   });
 
   apiFunctions.setUpdateArgumentsPreValidate('connectNative',
                                              function(appName) {
     if (typeof(appName) !== 'string') {
-      throw new Error('Invalid arguments to connectNative.');
+      throw new $Error.self('Invalid arguments to connectNative.');

[not at google - send to devlin, 2014/08/19 16:45:56]

new Error()

     }
     return [appName];
   });
@@ -155,7 +155,7 @@ binding.registerCustomHook(function(binding, id, contextType) {
     // Don't let orphaned content scripts communicate with their extension.
     // http://crbug.com/168263
     if (unloadEvent.wasDispatched)
-      throw new Error('Error connecting to extension ' + targetId);
+      throw new $Error.self('Error connecting to extension ' + targetId);

[not at google - send to devlin, 2014/08/19 16:45:56]

new Error()

 
     if (!targetId)
       targetId = runtime.id;
@@ -187,7 +187,7 @@ binding.registerCustomHook(function(binding, id, contextType) {
       if (portId >= 0)
         return messaging.createPort(portId, '');
     }
-    throw new Error('Error connecting to native app: ' + nativeAppName);
+    throw new $Error.self('Error connecting to native app: ' + nativeAppName);

[not at google - send to devlin, 2014/08/19 16:45:56]

new Error() ... I think.

   });
 
   apiFunctions.setCustomCallback('getBackgroundPage',