Remove GTalk Pepper interfaces and related code.

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 54a0d74b400a726a7b2715d44c2aef2b412d6565..cd94bfdc38818cb04a24fce978ee941824bfb0f0 100644
--- a/ppapi/proxy/ppapi_messages.h
+++ b/ppapi/proxy/ppapi_messages.h
@@ -50,7 +50,6 @@
 #include "ppapi/c/private/ppb_isolated_file_system_private.h"
 #include "ppapi/c/private/ppb_net_address_private.h"
 #include "ppapi/c/private/ppb_pdf.h"
-#include "ppapi/c/private/ppb_talk_private.h"
 #include "ppapi/c/private/ppp_flash_browser_operations.h"
 #include "ppapi/c/private/ppp_pdf.h"
 #include "ppapi/proxy/host_resolver_private_resource.h"
@@ -119,9 +118,6 @@ IPC_ENUM_TRAITS(PP_PrivateFontCharset)
 IPC_ENUM_TRAITS(PP_ResourceImage)
 IPC_ENUM_TRAITS(PP_ResourceString)
 IPC_ENUM_TRAITS_MAX_VALUE(PP_SessionType, PP_SESSIONTYPE_PERSISTENT_RELEASE)
-IPC_ENUM_TRAITS_MAX_VALUE(PP_TalkEvent, PP_TALKEVENT_NUM_EVENTS - 1)
-IPC_ENUM_TRAITS_MAX_VALUE(PP_TalkPermission,
-                          PP_TALKPERMISSION_NUM_PERMISSIONS - 1)
 IPC_ENUM_TRAITS_MAX_VALUE(PP_TCPSocket_Option,
                           PP_TCPSOCKET_OPTION_RECV_BUFFER_SIZE)
 IPC_ENUM_TRAITS(PP_TextInput_Type)
@@ -2354,16 +2350,4 @@ IPC_MESSAGE_CONTROL1(PpapiPluginMsg_VideoCapture_OnError,
 IPC_MESSAGE_CONTROL1(PpapiPluginMsg_VideoCapture_OnBufferReady,
                      uint32_t /* buffer */)
 
-// Talk ------------------------------------------------------------------------
-
-IPC_MESSAGE_CONTROL0(PpapiHostMsg_Talk_Create)
-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)