Remove CanChallengePlatform() and CheckPlatformState().

ppapi/cpp/private/platform_verification.cc

 // Copyright 2013 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.
 
 #include "ppapi/cpp/private/platform_verification.h"
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_platform_verification_private.h"
 #include "ppapi/cpp/instance_handle.h"
@@ skipping 18 matching lines @@
 
 }  // namespace
 
 PlatformVerification::PlatformVerification(const InstanceHandle& instance) {
   if (HasInterface())
     PassRefFromConstructor(GetInterface()->Create(instance.pp_instance()));
 }
 
 PlatformVerification::~PlatformVerification() {}
 
-int32_t PlatformVerification::CanChallengePlatform(
-    const CompletionCallbackWithOutput<bool>& callback) {
-  if (!HasInterface())
-    return callback.MayForce(PP_ERROR_NOINTERFACE);
-
-  return GetInterface()->CanChallengePlatform(
-      pp_resource(), callback.output(), callback.pp_completion_callback());
-}
-
 int32_t PlatformVerification::ChallengePlatform(
     const Var& service_id,
     const Var& challenge,
     Var* signed_data,
     Var* signed_data_signature,
     Var* platform_key_certificate,
     const CompletionCallback& callback) {
   if (!HasInterface())
     return callback.MayForce(PP_ERROR_NOINTERFACE);
 
   return GetInterface()->ChallengePlatform(
       pp_resource(), service_id.pp_var(), challenge.pp_var(),
       const_cast<PP_Var*>(&signed_data->pp_var()),
       const_cast<PP_Var*>(&signed_data_signature->pp_var()),
       const_cast<PP_Var*>(&platform_key_certificate->pp_var()),
       callback.pp_completion_callback());
 }
 
 }  // namespace pp