Oilpan: Factor out GC-related enum definitions to BlinkGC.h

third_party/WebKit/Source/platform/heap/PagePool.h

Index: third_party/WebKit/Source/platform/heap/PagePool.h
diff --git a/third_party/WebKit/Source/platform/heap/PagePool.h b/third_party/WebKit/Source/platform/heap/PagePool.h
index 9b4e8b5f5812d3c73b486740d37aba64e92f2681..c33a8e22c4b9f00ea79d66b67f2e7dbc70d08330 100644
--- a/third_party/WebKit/Source/platform/heap/PagePool.h
+++ b/third_party/WebKit/Source/platform/heap/PagePool.h
@@ -18,7 +18,7 @@ class PagePool {
 protected:
     PagePool()
     {
-        for (int i = 0; i < ThreadState::NumberOfHeaps; ++i)
+        for (int i = 0; i < BlinkGC::NumberOfHeaps; ++i)
             m_pool[i] = nullptr;
     }
 
@@ -33,7 +33,7 @@ protected:
         PoolEntry* next;
     };
 
-    PoolEntry* m_pool[ThreadState::NumberOfHeaps];
+    PoolEntry* m_pool[BlinkGC::NumberOfHeaps];
 };
 
 // Once pages have been used for one type of thread heap they will never be
@@ -51,7 +51,7 @@ public:
     PageMemory* takeFreePage(int);
 
 private:
-    Mutex m_mutex[ThreadState::NumberOfHeaps];
+    Mutex m_mutex[BlinkGC::NumberOfHeaps];
 };
 
 class OrphanedPagePool : public PagePool<BasePage> {