[Extensions Bindings] Move custom handling to APIBindingHooksDelegate

extensions/renderer/api_binding_hooks_test_delegate.cc

+// Copyright 2017 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.
+
+#include "extensions/renderer/api_binding_hooks_test_delegate.h"
+
+namespace extensions {
+
+APIBindingHooksTestDelegate::APIBindingHooksTestDelegate() {}
+APIBindingHooksTestDelegate::~APIBindingHooksTestDelegate() {}
+
+bool APIBindingHooksTestDelegate::CreateCustomEvent(
+    v8::Local<v8::Context> context,
+    const binding::RunJSFunctionSync& run_js_sync,
+    const std::string& event_name,
+    v8::Local<v8::Value>* event_out) {
+  if (!custom_event_.is_null()) {
+    *event_out = custom_event_.Run(context, run_js_sync, event_name);
+    return true;
+  }
+  return false;
+}
+
+void APIBindingHooksTestDelegate::AddHandler(base::StringPiece name,
+                                             const RequestHandler& handler) {
+  request_handlers_[name.as_string()] = handler;
+}
+
+void APIBindingHooksTestDelegate::SetCustomEvent(
+    const CustomEventFactory& custom_event) {
+  custom_event_ = custom_event;
+}
+
+APIBindingHooks::RequestResult APIBindingHooksTestDelegate::HandleRequest(
+    const std::string& method_name,
+    const APISignature* signature,
+    v8::Local<v8::Context> context,
+    std::vector<v8::Local<v8::Value>>* arguments,
+    const APITypeReferenceMap& refs) {
+  auto iter = request_handlers_.find(method_name);
+  if (iter == request_handlers_.end()) {
+    return APIBindingHooks::RequestResult(
+        APIBindingHooks::RequestResult::NOT_HANDLED);
+  }
+  return iter->second.Run(signature, context, arguments, refs);
+}
+
+}  // namespace extensions