[Reland][Extensions Bindings] Add support for filtered events

extensions/renderer/native_extension_bindings_system.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_RENDERER_NATIVE_EXTENSION_BINDINGS_SYSTEM_H_
 #define EXTENSIONS_RENDERER_NATIVE_EXTENSION_BINDINGS_SYSTEM_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 16 matching lines @@
 // be a plug-and-play version for use in the Extensions system.
 // Designed to be used in a single thread, but for all contexts on that thread.
 class NativeExtensionBindingsSystem : public ExtensionBindingsSystem {
  public:
   using SendRequestIPCMethod =
       base::Callback<void(ScriptContext*,
                           const ExtensionHostMsg_Request_Params&)>;
   using SendEventListenerIPCMethod =
       base::Callback<void(binding::EventListenersChanged,
                           ScriptContext*,
-                          const std::string& event_name)>;
+                          const std::string& event_name,
+                          const base::DictionaryValue* filter)>;
 
   NativeExtensionBindingsSystem(
       const SendRequestIPCMethod& send_request_ipc,
       const SendEventListenerIPCMethod& send_event_listener_ipc);
   ~NativeExtensionBindingsSystem() override;
 
   // ExtensionBindingsSystem:
   void DidCreateScriptContext(ScriptContext* context) override;
   void WillReleaseScriptContext(ScriptContext* context) override;
   void UpdateBindingsForContext(ScriptContext* context) override;
@@ skipping 10 matching lines @@
  private:
   // Handles sending a given |request|, forwarding it on to the send_ipc_ after
   // adding additional info.
   void SendRequest(std::unique_ptr<APIRequestHandler::Request> request,
                    v8::Local<v8::Context> context);
 
   // Called when listeners for a given event have changed, and forwards it along
   // to |send_event_listener_ipc_|.
   void OnEventListenerChanged(const std::string& event_name,
                               binding::EventListenersChanged change,
+                              const base::DictionaryValue* filter,
                               v8::Local<v8::Context> context);
 
   // Getter callback for an extension API, since APIs are constructed lazily.
   static void BindingAccessor(v8::Local<v8::Name> name,
                               const v8::PropertyCallbackInfo<v8::Value>& info);
 
   // Creates and returns the API binding for the given |name|.
   static v8::Local<v8::Object> GetAPIHelper(v8::Local<v8::Context> context,
                                             v8::Local<v8::String> name);
 
@@ skipping 24 matching lines @@
   v8::Eternal<v8::FunctionTemplate> get_internal_api_;
 
   base::WeakPtrFactory<NativeExtensionBindingsSystem> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeExtensionBindingsSystem);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_NATIVE_EXTENSION_BINDINGS_SYSTEM_H_