Revert 125801 - Implement a module system for the extension bindings JS.

chrome/renderer/resources/extensions/extension_custom_bindings.js

Index: chrome/renderer/resources/extensions/extension_custom_bindings.js
===================================================================
--- chrome/renderer/resources/extensions/extension_custom_bindings.js	(revision 125813)
+++ chrome/renderer/resources/extensions/extension_custom_bindings.js	(working copy)
@@ -4,12 +4,14 @@
 
 // Custom bindings for the extension API.
 
-var extensionNatives = requireNative('extension');
-var GetExtensionViews = extensionNatives.GetExtensionViews;
-var OpenChannelToExtension = extensionNatives.OpenChannelToExtension;
+(function() {
 
-var chromeHidden = requireNative('chrome_hidden').GetChromeHidden();
+native function GetChromeHidden();
+native function GetExtensionViews();
+native function OpenChannelToExtension(sourceId, targetId, name);
 
+var chromeHidden = GetChromeHidden();
+
 // This should match chrome.windows.WINDOW_ID_NONE.
 //
 // We can't use chrome.windows.WINDOW_ID_NONE directly because the
@@ -142,3 +144,5 @@
     throw new Error('Error connecting to extension ' + targetId);
   });
 });
+
+})();