[Isolates] Merge 6700:7030 from bleeding_edge to isolates.

src/factory.cc

Index: src/factory.cc
===================================================================
--- src/factory.cc	(revision 7031)
+++ src/factory.cc	(working copy)
@@ -405,6 +405,11 @@
 }
 
 
+Handle<Map> Factory::GetPixelArrayElementsMap(Handle<Map> src) {
+  CALL_HEAP_FUNCTION(isolate(), src->GetPixelArrayElementsMap(), Map);
+}
+
+
 Handle<FixedArray> Factory::CopyFixedArray(Handle<FixedArray> array) {
   CALL_HEAP_FUNCTION(isolate(), array->Copy(), FixedArray);
 }
@@ -654,7 +659,8 @@
   // Set function.prototype and give the prototype a constructor
   // property that refers to the function.
   SetPrototypeProperty(function, prototype);
-  SetProperty(prototype, constructor_symbol(), function, DONT_ENUM);
+  // Currently safe because it is only invoked from Genesis.
+  SetLocalPropertyNoThrow(prototype, constructor_symbol(), function, DONT_ENUM);
   return function;
 }