[Isolates] Convert more static data either to read-only or to per-isolate.

src/log-utils.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 102 matching lines @@
     if (block_write_pos_ == block_size_) {
       block_write_pos_ = 0;
       AllocateBlock(++block_index_);
     }
   }
   write_pos_ += data_size;
   return data_size;
 }
 
 // Must be the same message as in Logger::PauseProfiler.
-const char* Log::kDynamicBufferSeal = "profiler,\"pause\"\n";
+const char* const Log::kDynamicBufferSeal = "profiler,\"pause\"\n";
 
 Log::Log(Logger* logger)
   : write_to_file_(false),
     is_stopped_(false),
     output_handle_(NULL),
     output_buffer_(NULL),
     mutex_(NULL),
     message_buffer_(NULL),
     logger_(logger) {
 }
@@ skipping 298 matching lines @@
       log_->WriteToMemory(log_->message_buffer_, pos_);
   if (written != pos_) {
     log_->stop();
     log_->logger_->LogFailure();
   }
 }
 
 
 // Formatting string for back references to the whole line. E.g. "#2" means
 // "the second line above".
-const char* LogRecordCompressor::kLineBackwardReferenceFormat = "#%d";
+const char* const LogRecordCompressor::kLineBackwardReferenceFormat = "#%d";
 
 // Formatting string for back references. E.g. "#2:10" means
 // "the second line above, start from char 10 (0-based)".
-const char* LogRecordCompressor::kBackwardReferenceFormat = "#%d:%d";
+const char* const LogRecordCompressor::kBackwardReferenceFormat = "#%d:%d";
 
 
 LogRecordCompressor::~LogRecordCompressor() {
   for (int i = 0; i < buffer_.length(); ++i) {
     buffer_[i].Dispose();
   }
 }
 
 
 static int GetNumberLength(int number) {
@@ skipping 114 matching lines @@
     PrintBackwardReference(backref, best.distance, best.copy_from_pos);
     ASSERT(strlen(backref.start()) - best.backref_size == 0);
     prev_record->Truncate(static_cast<int>(unchanged_len + best.backref_size));
   }
   return true;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal