[heap] Move a few methods from spaces.h to spaces.cc

src/heap/spaces.h

 // Copyright 2011 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.
 
 #ifndef V8_HEAP_SPACES_H_
 #define V8_HEAP_SPACES_H_
 
 #include <list>
 #include <memory>
 #include <unordered_set>
@@ skipping 864 matching lines @@
   virtual ~Space() {}
 
   Heap* heap() const { return heap_; }
 
   // Does the space need executable memory?
   Executability executable() { return executable_; }
 
   // Identity used in error reporting.
   AllocationSpace identity() { return id_; }
 
-  virtual void AddAllocationObserver(AllocationObserver* observer) {
-    allocation_observers_->Add(observer);
-  }
+  V8_EXPORT_PRIVATE virtual void AddAllocationObserver(
+      AllocationObserver* observer);
 
-  virtual void RemoveAllocationObserver(AllocationObserver* observer) {
-    bool removed = allocation_observers_->RemoveElement(observer);
-    USE(removed);
-    DCHECK(removed);
-  }
+  V8_EXPORT_PRIVATE virtual void RemoveAllocationObserver(
+      AllocationObserver* observer);
 
-  virtual void PauseAllocationObservers() {
-    allocation_observers_paused_ = true;
-  }
+  V8_EXPORT_PRIVATE virtual void PauseAllocationObservers();
 
-  virtual void ResumeAllocationObservers() {
-    allocation_observers_paused_ = false;
-  }
+  V8_EXPORT_PRIVATE virtual void ResumeAllocationObservers();
 
   void AllocationStep(Address soon_object, int size);
 
   // Return the total amount committed memory for this space, i.e., allocatable
   // memory and page headers.
   virtual size_t CommittedMemory() { return committed_; }
 
   virtual size_t MaximumCommittedMemory() { return max_committed_; }
 
   // Returns allocated size.
@@ skipping 2047 matching lines @@
   PageIterator old_iterator_;
   PageIterator code_iterator_;
   PageIterator map_iterator_;
   LargePageIterator lo_iterator_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_SPACES_H_