Reland "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

src/api.cc

Index: src/api.cc
diff --git a/src/api.cc b/src/api.cc
index fd84341b1e335bb25389617a5543305f1d76599f..6caa82a5ea5d907119da06e0f2b35e7ce7794347 100644
--- a/src/api.cc
+++ b/src/api.cc
@@ -4996,7 +4996,7 @@ void v8::Object::SetInternalField(int index, v8::Handle<Value> value) {
   if (!InternalFieldOK(obj, index, location)) return;
   i::Handle<i::Object> val = Utils::OpenHandle(*value);
   obj->SetInternalField(index, *val);
-  DCHECK_EQ(value, GetInternalField(index));
+  DCHECK(value->Equals(GetInternalField(index)));
 }
 
 
@@ -7357,6 +7357,11 @@ void HeapSnapshot::Serialize(OutputStream* stream,
 }
 
 
+// static
+STATIC_CONST_MEMBER_DEFINITION const SnapshotObjectId
+    HeapProfiler::kUnknownObjectId;
+
+
 int HeapProfiler::GetSnapshotCount() {
   return reinterpret_cast<i::HeapProfiler*>(this)->GetSnapshotsCount();
 }