Move RootIndexMap out of serializer file.

src/snapshot/serialize.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 "src/snapshot/serialize.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 336 matching lines @@
 const char* ExternalReferenceEncoder::NameOfAddress(Isolate* isolate,
                                                     Address address) const {
   HashMap::Entry* entry =
       const_cast<HashMap*>(map_)->Lookup(address, Hash(address));
   if (entry == NULL) return "<unknown>";
   uint32_t i = static_cast<uint32_t>(reinterpret_cast<intptr_t>(entry->value));
   return ExternalReferenceTable::instance(isolate)->name(i);
 }
 
 
-RootIndexMap::RootIndexMap(Isolate* isolate) {
-  map_ = isolate->root_index_map();
-  if (map_ != NULL) return;
-  map_ = new HashMap(HashMap::PointersMatch);
-  for (uint32_t i = 0; i < Heap::kStrongRootListLength; i++) {
-    Heap::RootListIndex root_index = static_cast<Heap::RootListIndex>(i);
-    Object* root = isolate->heap()->root(root_index);
-    // Omit root entries that can be written after initialization. They must
-    // not be referenced through the root list in the snapshot.
-    if (root->IsHeapObject() &&
-        isolate->heap()->RootCanBeTreatedAsConstant(root_index)) {
-      HeapObject* heap_object = HeapObject::cast(root);
-      HashMap::Entry* entry = LookupEntry(map_, heap_object, false);
-      if (entry != NULL) {
-        // Some are initialized to a previous value in the root list.
-        DCHECK_LT(GetValue(entry), i);
-      } else {
-        SetValue(LookupEntry(map_, heap_object, true), i);
-      }
-    }
-  }
-  isolate->set_root_index_map(map_);
-}
-
-
 class CodeAddressMap: public CodeEventLogger {
  public:
   explicit CodeAddressMap(Isolate* isolate)
       : isolate_(isolate) {
     isolate->logger()->addCodeEventListener(this);
   }
 
   virtual ~CodeAddressMap() {
     isolate_->logger()->removeCodeEventListener(this);
   }
@@ skipping 2486 matching lines @@
   SerializedCodeData* scd = new SerializedCodeData(cached_data);
   SanityCheckResult r = scd->SanityCheck(isolate, source);
   if (r == CHECK_SUCCESS) return scd;
   cached_data->Reject();
   source->GetIsolate()->counters()->code_cache_reject_reason()->AddSample(r);
   delete scd;
   return NULL;
 }
 }  // namespace internal
 }  // namespace v8