Using "static_assert" in lieu of "COMPILE_ASSERT" in extensions module

extensions/browser/api/cast_channel/logger.cc

 // Copyright 2014 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 "extensions/browser/api/cast_channel/logger.h"
 
 #include <string>
 
 #include "base/strings/string_util.h"
 #include "base/time/tick_clock.h"
@@ skipping 58 matching lines @@
                             Z_DEFLATED,
                             // 16 is added to produce a gzip header + trailer.
                             MAX_WBITS + 16,
                             8,  // memLevel = 8 is default.
                             Z_DEFAULT_STRATEGY);
   DCHECK_EQ(Z_OK, result);
 
   size_t out_size = deflateBound(&stream, input.size());
   scoped_ptr<char[]> out(new char[out_size]);
 
-  COMPILE_ASSERT(sizeof(uint8) == sizeof(char), uint8_char_different_sizes);
+  static_assert(sizeof(uint8) == sizeof(char),
+                "uint8 char should be of different sizes");
 
   stream.next_in = reinterpret_cast<uint8*>(const_cast<char*>(input.data()));
   stream.avail_in = input.size();
   stream.next_out = reinterpret_cast<uint8*>(out.get());
   stream.avail_out = out_size;
 
   // Do a one-shot compression. This will return Z_STREAM_END only if |output|
   // is large enough to hold all compressed data.
   result = deflate(&stream, Z_FINISH);
 
@@ skipping 272 matching lines @@
   if (it != aggregated_socket_events_.end()) {
     return it->second->last_errors;
   } else {
     return LastErrors();
   }
 }
 
 }  // namespace cast_channel
 }  // namespace core_api
 }  // namespace extensions