Replace our homegrown ARRAY_SIZE() with Chrome's arraysize().

src/bootstrapper.cc

Index: src/bootstrapper.cc
diff --git a/src/bootstrapper.cc b/src/bootstrapper.cc
index e0e90b375104758a68ee51848f719c8e62f50237..09e56d991bbb51eada311f24863f61bb9655cd5f 100644
--- a/src/bootstrapper.cc
+++ b/src/bootstrapper.cc
@@ -2682,7 +2682,7 @@ Genesis::Genesis(Isolate* isolate,
                                   NONE).Assert();
 
     // Initialize trigonometric lookup tables and constants.
-    const int constants_size = ARRAY_SIZE(fdlibm::MathConstants::constants);
+    const int constants_size = arraysize(fdlibm::MathConstants::constants);
     const int table_num_bytes = constants_size * kDoubleSize;
     v8::Local<v8::ArrayBuffer> trig_buffer = v8::ArrayBuffer::New(
         reinterpret_cast<v8::Isolate*>(isolate),