Run clang-modernize -use-nullptr over src/extensions/.

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 "base/strings/string_util.h"
 #include "base/time/tick_clock.h"
 #include "extensions/browser/api/cast_channel/cast_auth_util.h"
 #include "extensions/browser/api/cast_channel/logger_util.h"
@@ skipping 42 matching lines @@
     case AuthResult::ERROR_NSS_SIGNED_BLOBS_MISMATCH:
       return proto::CHALLENGE_REPLY_ERROR_NSS_SIGNED_BLOBS_MISMATCH;
     default:
       NOTREACHED();
       return proto::CHALLENGE_REPLY_ERROR_NONE;
   }
 }
 
 scoped_ptr<char[]> Compress(const std::string& input, size_t* length) {
   *length = 0;
-  z_stream stream = {0};
+  z_stream stream = {nullptr};
   int result = deflateInit2(&stream,
                             Z_DEFAULT_COMPRESSION,
                             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());
@@ skipping 277 matching lines @@
   if (it != aggregated_socket_events_.end()) {
     return it->second->last_errors;
   } else {
     return LastErrors();
   }
 }
 
 }  // namespace cast_channel
 }  // namespace api
 }  // namespace extensions