Remove CanChallengePlatform() and CheckPlatformState().

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 1401 matching lines @@
 
 // This message is a reply to HostResolver_Resolve. On success,
 // |canonical_name| contains the canonical name of the host; |net_address_list|
 // is a list of network addresses. On failure, both fields are set to empty.
 IPC_MESSAGE_CONTROL2(PpapiPluginMsg_HostResolver_ResolveReply,
                      std::string /* canonical_name */,
                      std::vector<PP_NetAddress_Private> /* net_address_list */)
 
 // Platform Verification -------------------------------------------------------
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_PlatformVerification_Create)
-IPC_MESSAGE_CONTROL0(PpapiHostMsg_PlatformVerification_CanChallengePlatform)
-IPC_MESSAGE_CONTROL1(
-    PpapiHostMsg_PlatformVerification_CanChallengePlatformReply,
-    bool /* can_challenge_platform */)
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_PlatformVerification_ChallengePlatform,
                      std::string /* service_id  */,
                      std::vector<uint8_t> /* challenge */)
 IPC_MESSAGE_CONTROL3(PpapiHostMsg_PlatformVerification_ChallengePlatformReply,
                      std::vector<uint8_t> /* signed_data */,
                      std::vector<uint8_t> /* signed_data_signature */,
                      std::string /* platform_key_certificate */)
 
 // Printing.
 IPC_MESSAGE_CONTROL0(PpapiHostMsg_Printing_Create)
@@ skipping 524 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)