Extract ExtensionRequestSender from SchemaGeneratedBindings.

chrome/renderer/extensions/extension_dispatcher.h

Index: chrome/renderer/extensions/extension_dispatcher.h
diff --git a/chrome/renderer/extensions/extension_dispatcher.h b/chrome/renderer/extensions/extension_dispatcher.h
index 9f24aa4a246c29d07d4646c5be8afb1695d8e425..74d575412c0f84b161c11b876d1dcb7430663eef 100644
--- a/chrome/renderer/extensions/extension_dispatcher.h
+++ b/chrome/renderer/extensions/extension_dispatcher.h
@@ -25,6 +25,7 @@ class ModuleSystem;
 class GURL;
 class URLPattern;
 class UserScriptSlave;
+class ExtensionRequestSender;
 struct ExtensionMsg_Loaded_Params;
 
 namespace WebKit {
@@ -102,6 +103,17 @@ class ExtensionDispatcher : public content::RenderProcessObserver {
     return webrequest_other_;
   }
 
+  void OnExtensionResponse(int request_id,
+                           bool success,
+                           const std::string& response,
+                           const std::string& error);
+
+  // Checks that the current context contains an extension that has permission
+  // to execute the specified function. If it does not, a v8 exception is thrown
+  // and the method returns false. Otherwise returns true.
+  bool CheckCurrentContextAccessToExtensionAPI(
+      const std::string& function_name) const;
+
  private:
   friend class RenderViewTest;
   typedef void (*BindingInstaller)(ModuleSystem* module_system,
@@ -220,6 +232,9 @@ class ExtensionDispatcher : public content::RenderProcessObserver {
   // them.
   std::map<std::string, BindingInstaller> lazy_bindings_map_;
 
+  // Sends API requests to the extension host.
+  scoped_ptr<ExtensionRequestSender> request_sender_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionDispatcher);
 };