Make unittests work in component build

src/heap/heap.h

 // 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.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 605 matching lines @@
   static const int kMaxExecutableSizeMediumMemoryDevice =
       192 * kPointerMultiplier;
   static const int kMaxExecutableSizeHighMemoryDevice =
       256 * kPointerMultiplier;
   static const int kMaxExecutableSizeHugeMemoryDevice =
       256 * kPointerMultiplier;
 
   static const int kTraceRingBufferSize = 512;
   static const int kStacktraceBufferSize = 512;
 
-  static const double kMinHeapGrowingFactor;
-  static const double kMaxHeapGrowingFactor;
+  V8_EXPORT_PRIVATE static const double kMinHeapGrowingFactor;
+  V8_EXPORT_PRIVATE static const double kMaxHeapGrowingFactor;
   static const double kMaxHeapGrowingFactorMemoryConstrained;
   static const double kMaxHeapGrowingFactorIdle;
   static const double kConservativeHeapGrowingFactor;
   static const double kTargetMutatorUtilization;
 
   static const int kNoGCFlags = 0;
   static const int kReduceMemoryFootprintMask = 1;
   static const int kAbortIncrementalMarkingMask = 2;
   static const int kFinalizeIncrementalMarkingMask = 4;
 
@@ skipping 42 matching lines @@
     return true;
 #else
 #ifdef VERIFY_HEAP
     return FLAG_verify_heap;
 #else
     return false;
 #endif
 #endif
   }
 
-  static double HeapGrowingFactor(double gc_speed, double mutator_speed);
+  V8_EXPORT_PRIVATE static double HeapGrowingFactor(double gc_speed,
+                                                    double mutator_speed);
 
   // Copy block of memory from src to dst. Size of block should be aligned
   // by pointer size.
   static inline void CopyBlock(Address dst, Address src, int byte_size);
 
   // Determines a static visitor id based on the given {map} that can then be
   // stored on the map to facilitate fast dispatch for {StaticVisitorBase}.
   static int GetStaticVisitorIdForMap(Map* map);
 
   // Notifies the heap that is ok to start marking or other activities that
@@ skipping 1938 matching lines @@
   }
 
  private:
   Heap* heap_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_H_