Retire StringTracker.

src/isolate.cc

 // Copyright 2012 the V8 project 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 <stdlib.h>
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/v8.h"
@@ skipping 1742 matching lines @@
       keyed_lookup_cache_(NULL),
       context_slot_cache_(NULL),
       descriptor_lookup_cache_(NULL),
       handle_scope_implementer_(NULL),
       unicode_cache_(NULL),
       inner_pointer_to_code_cache_(NULL),
       global_handles_(NULL),
       eternal_handles_(NULL),
       thread_manager_(NULL),
       has_installed_extensions_(false),
-      string_tracker_(NULL),
       regexp_stack_(NULL),
       date_cache_(NULL),
       call_descriptor_data_(NULL),
       // TODO(bmeurer) Initialized lazily because it depends on flags; can
       // be fixed once the default isolate cleanup is done.
       random_number_generator_(NULL),
       store_buffer_hash_set_1_address_(NULL),
       store_buffer_hash_set_2_address_(NULL),
       serializer_enabled_(enable_serializer),
       has_fatal_error_(false),
@@ skipping 214 matching lines @@
   delete compilation_cache_;
   compilation_cache_ = NULL;
   delete bootstrapper_;
   bootstrapper_ = NULL;
   delete inner_pointer_to_code_cache_;
   inner_pointer_to_code_cache_ = NULL;
 
   delete thread_manager_;
   thread_manager_ = NULL;
 
-  delete string_tracker_;
-  string_tracker_ = NULL;
-
   delete memory_allocator_;
   memory_allocator_ = NULL;
   delete code_range_;
   code_range_ = NULL;
   delete global_handles_;
   global_handles_ = NULL;
   delete eternal_handles_;
   eternal_handles_ = NULL;
 
   delete string_stream_debug_object_cache_;
@@ skipping 86 matching lines @@
 
   // Safe after setting Heap::isolate_, and initializing StackGuard
   heap_.SetStackLimits();
 
 #define ASSIGN_ELEMENT(CamelName, hacker_name)                  \
   isolate_addresses_[Isolate::k##CamelName##Address] =          \
       reinterpret_cast<Address>(hacker_name##_address());
   FOR_EACH_ISOLATE_ADDRESS_NAME(ASSIGN_ELEMENT)
 #undef ASSIGN_ELEMENT
 
-  string_tracker_ = new StringTracker();
-  string_tracker_->isolate_ = this;
   compilation_cache_ = new CompilationCache(this);
   keyed_lookup_cache_ = new KeyedLookupCache();
   context_slot_cache_ = new ContextSlotCache();
   descriptor_lookup_cache_ = new DescriptorLookupCache();
   unicode_cache_ = new UnicodeCache();
   inner_pointer_to_code_cache_ = new InnerPointerToCodeCache(this);
   global_handles_ = new GlobalHandles(this);
   eternal_handles_ = new EternalHandles();
   bootstrapper_ = new Bootstrapper(this);
   handle_scope_implementer_ = new HandleScopeImplementer(this);
@@ skipping 712 matching lines @@
   // Then check whether this scope intercepts.
   if ((flag & intercept_mask_)) {
     intercepted_flags_ |= flag;
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8