Pepper gamepad support

ppapi/cpp/dev/gamepad_dev.cc

+// Copyright (c) 2011 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 "ppapi/cpp/dev/gamepad_dev.h"
+
+#include "ppapi/c/dev/ppb_gamepad_dev.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/module.h"
+#include "ppapi/cpp/module_impl.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_Gamepad_Dev>() {
+  return PPB_GAMEPAD_DEV_INTERFACE;
+}
+
+}  // namespace
+
+Gamepad::Gamepad(Instance* instance)
+    : instance_(instance) {
+}
+
+Gamepad::~Gamepad() {
+}
+
+bool Gamepad::SampleGamepads(PP_GamepadsData_Dev* data) {
+  if (!has_interface<PPB_Gamepad_Dev>())
+    return false;
+  get_interface<PPB_Gamepad_Dev>()->SampleGamepads(
+      instance_->pp_instance(), data);
+  return true;
+}
+
+}  // namespace pp