Pepper: Add MonitorIsExternal function to PPB_Flash_DRM.

ppapi/proxy/ppapi_messages.h

 // 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.
 
 // Multiply-included message header, no traditional include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
@@ skipping 1319 matching lines @@
                      int64_t /* hmonitor */)
 
 // Requests the voucher file which is used to verify the integrity of the Flash
 // module. A PPB_FileRef resource will be created.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDRM_GetVoucherFile)
 // Reply message for GetVoucherFile which contains the CreateInfo for a
 // PPB_FileRef which points to the voucher file.
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashDRM_GetVoucherFileReply,
                      ppapi::FileRefCreateInfo /* file_info */)
 
+// Requests a value indicating whether the monitor on which the instance is
+// displayed is external.
+IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDRM_MonitorIsExternal)
+// Reply message for MonitorIsExternal which contains the value indicating if
+// the monitor is external.
+IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashDRM_MonitorIsExternalReply,
+                     PP_Bool /* is_external */)
+
 // Gamepad.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Gamepad_Create)
 
 // Requests that the gamepad host send the shared memory handle to the plugin
 // process.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Gamepad_RequestMemory)
 
 // Reply to a RequestMemory call. This supplies the shared memory handle. The
 // actual handle is passed in the ReplyParams struct.
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Gamepad_SendMemory)
@@ skipping 638 matching lines @@
 IPC_MESSAGE_CONTROL1(PpapiHostMsg_Talk_RequestPermission,
                      PP_TalkPermission /* permission */)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_RequestPermissionReply)
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Talk_StartRemoting)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_StartRemotingReply)
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Talk_StopRemoting)
 IPC_MESSAGE_CONTROL0(PpapiPluginMsg_Talk_StopRemotingReply)
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_Talk_NotifyEvent, PP_TalkEvent /* event */)
 
 #endif  // !defined(OS_NACL) && !defined(NACL_WIN64)