Rename PPB_Flash_DeviceID interface to PPB_Flash_DRM

ppapi/proxy/ppapi_messages.h

Index: ppapi/proxy/ppapi_messages.h
diff --git a/ppapi/proxy/ppapi_messages.h b/ppapi/proxy/ppapi_messages.h
index 6aaaabce2697cd50f2f8d0aaae4c87347cde1e6c..517b7c41c033da5562740946d8771db0dbdebbd5 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -45,6 +45,7 @@
 #include "ppapi/c/private/ppb_tcp_socket_private.h"
 #include "ppapi/c/private/ppb_udp_socket_private.h"
 #include "ppapi/c/private/ppp_flash_browser_operations.h"
+#include "ppapi/c/private/ppb_flash_drm.h"
 #include "ppapi/proxy/host_resolver_private_resource.h"
 #include "ppapi/proxy/ppapi_param_traits.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
@@ -1384,10 +1385,13 @@ IPC_MESSAGE_CONTROL0(PpapiPluginMsg_FileSystem_OpenReply)
 IPC_MESSAGE_CONTROL1(PpapiHostMsg_FileSystem_InitIsolatedFileSystem,
                      std::string /* fsid */)
 
-// Flash device ID.
-IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDeviceID_Create)
-IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDeviceID_GetDeviceID)
-IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashDeviceID_GetDeviceIDReply,
+// Flash DRM ------------------------------------------------------------------
+IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDRM_Create)
+
+// Requests the device ID.
+IPC_MESSAGE_CONTROL0(PpapiHostMsg_FlashDRM_GetDeviceID)
+// Reply for GetDeviceID which includes the device ID as a string.
+IPC_MESSAGE_CONTROL1(PpapiPluginMsg_FlashDRM_GetDeviceIDReply,
                      std::string /* id */)
 
 // Gamepad.