Include implicit_cast.h at all users of it.

util/numeric/checked_range.h

 // 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,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #ifndef CRASHPAD_UTIL_NUMERIC_CHECKED_RANGE_H_
 #define CRASHPAD_UTIL_NUMERIC_CHECKED_RANGE_H_
 
 #include <limits>
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/numerics/safe_math.h"
+#include "util/misc/implicit_cast.h"
 
 namespace crashpad {
 
 //! \brief Ensures that a range, composed of a base and size, does not overflow
 //!     its data type.
 template <typename ValueType, typename SizeType = ValueType>
 class CheckedRange {
  public:
   CheckedRange(ValueType base, SizeType size) {
     static_assert(!std::numeric_limits<SizeType>::is_signed,
@@ skipping 72 matching lines @@
  private:
   ValueType base_;
   SizeType size_;
 
   DISALLOW_COPY_AND_ASSIGN(CheckedRange);
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_UTIL_NUMERIC_CHECKED_RANGE_H_