Replace implicit_cast usage with static_cast.

client/simulate_crash_mac.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 10 matching lines @@
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/mac/mach_logging.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "util/mach/exc_client_variants.h"
 #include "util/mach/exception_behaviors.h"
 #include "util/mach/exception_ports.h"
 #include "util/mach/mach_extensions.h"
+#include "util/misc/implicit_cast.h"
 
 namespace crashpad {
 
 namespace {
 
 //! \brief Sends an exception message to an exception port in accordance with
 //!     the behavior and thread state flavor it’s registered to receive.
 //!
 //! \param[in] thread, task, exception, code, code_count These parameters will
 //!     be passed to the exception handler as appropriate.
@@ skipping 191 matching lines @@
                                    false);
       }
     }
   }
 
   LOG_IF(WARNING, !success)
       << "SimulateCrash did not find an appropriate exception handler";
 }
 
 }  // namespace crashpad