replace COMPILE_ASSERT with static_assert in components/

components/variations/entropy_provider.cc

 // 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.
 
 #include "components/variations/entropy_provider.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 76 matching lines @@
   // it has been observed that this method does not result in a uniform
   // distribution given the same |trial_name|. When using such a low entropy
   // source, PermutedEntropyProvider should be used instead.
   std::string input(entropy_source_ + trial_name);
   unsigned char sha1_hash[base::kSHA1Length];
   base::SHA1HashBytes(reinterpret_cast<const unsigned char*>(input.c_str()),
                       input.size(),
                       sha1_hash);
 
   uint64 bits;
-  COMPILE_ASSERT(sizeof(bits) < sizeof(sha1_hash), need_more_data);
+  static_assert(sizeof(bits) < sizeof(sha1_hash), "more data required");
   memcpy(&bits, sha1_hash, sizeof(bits));
   bits = base::ByteSwapToLE64(bits);
 
   return base::BitsToOpenEndedUnitInterval(bits);
 }
 
 PermutedEntropyProvider::PermutedEntropyProvider(
     uint16 low_entropy_source,
     size_t low_entropy_source_max)
     : low_entropy_source_(low_entropy_source),
@@ skipping 16 matching lines @@
 }
 
 uint16 PermutedEntropyProvider::GetPermutedValue(
     uint32 randomization_seed) const {
   std::vector<uint16> mapping(low_entropy_source_max_);
   internal::PermuteMappingUsingRandomizationSeed(randomization_seed, &mapping);
   return mapping[low_entropy_source_];
 }
 
 }  // namespace metrics