Revert 184837

chrome/renderer/resources/extensions/send_request.js

Index: chrome/renderer/resources/extensions/send_request.js
===================================================================
--- chrome/renderer/resources/extensions/send_request.js	(revision 184858)
+++ chrome/renderer/resources/extensions/send_request.js	(working copy)
@@ -3,7 +3,6 @@
 // found in the LICENSE file.
 
 var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
-var DCHECK = requireNative('logging').DCHECK;
 var json = require('json');
 var lastError = require('lastError');
 var natives = requireNative('sendRequest');
@@ -15,7 +14,6 @@
                                        success, responseList, error) {
   try {
     var request = requests[requestId];
-    DCHECK(request != null);
     if (success) {
       lastError.clear();
     } else {
@@ -34,7 +32,7 @@
     if (request.callback) {
       // Validate callback in debug only -- and only when the
       // caller has provided a callback. Implementations of api
-      // calls may not return data if they observe the caller
+      // calls my not return data if they observe the caller
       // has not provided a callback.
       if (chromeHidden.validateCallbacks && !error) {
         try {