Refactor 3 PPB_Flash functions to the new resource model.

content/browser/renderer_host/pepper/pepper_flash_browser_host.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 "content/browser/renderer_host/pepper/pepper_flash_browser_host.h"
+
+#include "content/public/browser/browser_ppapi_host.h"
+#include "ipc/ipc_message_macros.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/host/dispatch_host_message.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/resource_message_params.h"
+
+#ifdef OS_WIN
+#include <windows.h>
+#elif defined(OS_MACOSX)
+#include <CoreServices/CoreServices.h>
+#endif
+
+namespace content {
+
+PepperFlashBrowserHost::PepperFlashBrowserHost(
+    BrowserPpapiHost* host,
+    PP_Instance instance,
+    PP_Resource resource)
+    : ResourceHost(host->GetPpapiHost(), instance, resource) {
+}
+
+PepperFlashBrowserHost::~PepperFlashBrowserHost() {
+}
+
+int32_t PepperFlashBrowserHost::OnResourceMessageReceived(
+    const IPC::Message& msg,
+    ppapi::host::HostMessageContext* context) {
+  IPC_BEGIN_MESSAGE_MAP(PepperFlashBrowserHost, msg)
+    PPAPI_DISPATCH_HOST_RESOURCE_CALL_0(PpapiHostMsg_Flash_UpdateActivity,
+                                        OnMsgUpdateActivity);
+  IPC_END_MESSAGE_MAP()
+  return PP_ERROR_FAILED;
+}
+
+int32_t PepperFlashBrowserHost::OnMsgUpdateActivity(
+    ppapi::host::HostMessageContext* host_context) {
+#if defined(OS_WIN)
+  // Reading then writing back the same value to the screensaver timeout system
+  // setting resets the countdown which prevents the screensaver from turning
+  // on "for a while". As long as the plugin pings us with this message faster
+  // than the screensaver timeout, it won't go on.
+  int value = 0;
+  if (SystemParametersInfo(SPI_GETSCREENSAVETIMEOUT, 0, &value, 0))
+    SystemParametersInfo(SPI_SETSCREENSAVETIMEOUT, value, NULL, 0);
+#elif defined(OS_MACOSX)
+  UpdateSystemActivity(OverallAct);
+#else
+  // TODO(brettw) implement this for other platforms.
+#endif
+  return PP_OK;
+}
+
+}  // namespace content