Bug 1101921 - Nursery heap size should scale with the chunk size; r=jonco

--HG--
extra : rebase_source : 0d50d5998f1d24af0e85050e617f2f088cb0b609

js/public/HeapAPI.h

@@ -98,7 +98,7 @@ namespace JS {
 struct Zone;
 
 /* Default size for the generational nursery in bytes. */
-const uint32_t DefaultNurseryBytes = 16 * 1024 * 1024;
+const uint32_t DefaultNurseryBytes = 16 * js::gc::ChunkSize;
 
 /* Default maximum heap size in bytes to pass to JS_NewRuntime(). */
 const uint32_t DefaultHeapMaxBytes = 32 * 1024 * 1024;

js/src/gc/Nursery.h

@@ -71,7 +71,7 @@ class Nursery
     {}
     ~Nursery();
 
-    bool init(uint32_t numNurseryChunks);
+    bool init(uint32_t maxNurseryBytes);
 
     bool exists() const { return numNurseryChunks_ != 0; }
     size_t numChunks() const { return numNurseryChunks_; }