Add skeleton plumbing for serial API. No functionality yet.

chrome/browser/extensions/api/serial/serial_api.cc

+// Copyright (c) 2012 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 <string>
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "chrome/browser/extensions/api/serial/serial_api.h"
+#include "content/public/browser/browser_thread.h"
+
+using content::BrowserThread;
+
+namespace extensions {
+
+const char kConnectionIdKey[] = "connectionId";
+
+SerialOpenFunction::SerialOpenFunction() {
+}
+
+SerialOpenFunction::~SerialOpenFunction() {
+}
+
+bool SerialOpenFunction::RunImpl() {
+  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &port_));
+
+  bool rv = BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&SerialOpenFunction::WorkOnIOThread, this));
+  DCHECK(rv);
+
+  return true;
+}
+
+void SerialOpenFunction::WorkOnIOThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  DictionaryValue* result = new DictionaryValue();
+  result->SetInteger(kConnectionIdKey, 42);
+  result_.reset(result);
+
+  bool rv = BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&SerialOpenFunction::RespondOnUIThread, this));
+  DCHECK(rv);
+}
+
+void SerialOpenFunction::RespondOnUIThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  SendResponse(true);
+}
+
+SerialCloseFunction::SerialCloseFunction() {
+}
+
+SerialCloseFunction::~SerialCloseFunction() {
+}
+
+bool SerialCloseFunction::RunImpl() {
+  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &connection_id_));
+
+  bool rv = BrowserThread::PostTask(
+      BrowserThread::IO, FROM_HERE,
+      base::Bind(&SerialCloseFunction::WorkOnIOThread, this));
+  DCHECK(rv);
+
+  return true;
+}
+
+void SerialCloseFunction::WorkOnIOThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+
+  result_.reset(Value::CreateBooleanValue(true));
+
+  bool rv = BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&SerialCloseFunction::RespondOnUIThread, this));
+  DCHECK(rv);
+}
+
+void SerialCloseFunction::RespondOnUIThread() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  SendResponse(true);
+}
+
+}  // namespace extensions