Remove CanChallengePlatform() and CheckPlatformState().

ppapi/thunk/ppb_platform_verification_private_thunk.cc

Index: ppapi/thunk/ppb_platform_verification_private_thunk.cc
diff --git a/ppapi/thunk/ppb_platform_verification_private_thunk.cc b/ppapi/thunk/ppb_platform_verification_private_thunk.cc
index 74cd360e8da6f8304d688fa3c84ca728f464cdf3..4cfced69560958c7445a7e2d7729e0fb088bea7c 100644
--- a/ppapi/thunk/ppb_platform_verification_private_thunk.cc
+++ b/ppapi/thunk/ppb_platform_verification_private_thunk.cc
@@ -3,7 +3,7 @@
 // found in the LICENSE file.
 
 // From private/ppb_platform_verification_private.idl,
-//   modified Thu Sep 12 11:48:28 2013.
+//   modified Fri Oct 18 13:55:50 2013.
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
@@ -34,18 +34,6 @@ PP_Bool IsPlatformVerification(PP_Resource resource) {
   return PP_FromBool(enter.succeeded());
 }
 
-int32_t CanChallengePlatform(PP_Resource instance,
-                             PP_Bool* can_challenge_platform,
-                             struct PP_CompletionCallback callback) {
-  VLOG(4) << "PPB_PlatformVerification_Private::CanChallengePlatform()";
-  EnterResource<PPB_PlatformVerification_API> enter(instance, callback, true);
-  if (enter.failed())
-    return enter.retval();
-  return enter.SetResult(enter.object()->CanChallengePlatform(
-      can_challenge_platform,
-      enter.callback()));
-}
-
 int32_t ChallengePlatform(PP_Resource instance,
                           struct PP_Var service_id,
                           struct PP_Var challenge,
@@ -70,7 +58,6 @@ const PPB_PlatformVerification_Private_0_1
     g_ppb_platformverification_private_thunk_0_1 = {
   &Create,
   &IsPlatformVerification,
-  &CanChallengePlatform,
   &ChallengePlatform
 };