Precompilation: Don't look at embedder allocated pages when finalizing the VM isolate.

runtime/vm/heap.cc

Index: runtime/vm/heap.cc
diff --git a/runtime/vm/heap.cc b/runtime/vm/heap.cc
index 138e9b1e1902bb0e4d89fe983e6c3a46a6ac5d88..0cd9f41320f0c1e2bb8845e71f8f0f894af67c3d 100644
--- a/runtime/vm/heap.cc
+++ b/runtime/vm/heap.cc
@@ -260,6 +260,12 @@ void Heap::IterateOldObjects(ObjectVisitor* visitor) const {
 }
 
 
+void Heap::IterateOldObjectsNoEmbedderPages(ObjectVisitor* visitor) const {
+  HeapIterationScope heap_iteration_scope;
+  old_space_.VisitObjectsNoEmbedderPages(visitor);
+}
+
+
 void Heap::VisitObjectPointers(ObjectPointerVisitor* visitor) const {
   new_space_.VisitObjectPointers(visitor);
   old_space_.VisitObjectPointers(visitor);
@@ -511,10 +517,10 @@ bool Heap::GrowthControlState() {
 }
 
 
-void Heap::WriteProtect(bool read_only, bool include_code_pages) {
+void Heap::WriteProtect(bool read_only) {
   read_only_ = read_only;
   new_space_.WriteProtect(read_only);
-  old_space_.WriteProtect(read_only, include_code_pages);
+  old_space_.WriteProtect(read_only);
 }
 
 
@@ -840,16 +846,15 @@ NoHeapGrowthControlScope::~NoHeapGrowthControlScope() {
 }
 
 
-WritableVMIsolateScope::WritableVMIsolateScope(Thread* thread,
-                                               bool include_code_pages)
-    : StackResource(thread), include_code_pages_(include_code_pages) {
-  Dart::vm_isolate()->heap()->WriteProtect(false, include_code_pages_);
+WritableVMIsolateScope::WritableVMIsolateScope(Thread* thread)
+    : StackResource(thread) {
+  Dart::vm_isolate()->heap()->WriteProtect(false);
 }
 
 
 WritableVMIsolateScope::~WritableVMIsolateScope() {
   ASSERT(Dart::vm_isolate()->heap()->UsedInWords(Heap::kNew) == 0);
-  Dart::vm_isolate()->heap()->WriteProtect(true, include_code_pages_);
+  Dart::vm_isolate()->heap()->WriteProtect(true);
 }
 
 }  // namespace dart