Add a ResourceConstraint for the embedder to specify that V8 is running on a memory constrained dev…

src/isolate.h

Index: src/isolate.h
diff --git a/src/isolate.h b/src/isolate.h
index c0083177373e0afcd5f899cb92d46e236936dd59..b80f46c3fc54d8a991a88896706a4250f553290d 100644
--- a/src/isolate.h
+++ b/src/isolate.h
@@ -1138,6 +1138,13 @@ class Isolate {
   // Given an address occupied by a live code object, return that object.
   Object* FindCodeObject(Address a);
 
+  bool isMemoryConstrained() {

[tfarina, 2013/09/03 19:39:18]

I believe this should be is_memory_constrained()

[Sven Panne, 2013/09/04 07:25:45]

... and should be const.

[rmcilroy, 2013/09/04 10:22:06]

Done.

+    return is_memory_constrained_;
+  }
+  void setIsMemoryConstrained(bool value) {

[tfarina, 2013/09/03 19:39:18]

set_is_memory_constrained

[rmcilroy, 2013/09/04 10:22:06]

Done.

+    is_memory_constrained_ = value;
+  }
+
  private:
   Isolate();
 
@@ -1313,6 +1320,7 @@ class Isolate {
   DateCache* date_cache_;
   unibrow::Mapping<unibrow::Ecma262Canonicalize> interp_canonicalize_mapping_;
   CodeStubInterfaceDescriptor* code_stub_interface_descriptors_;
+  bool is_memory_constrained_;
 
   // The garbage collector should be a little more aggressive when it knows
   // that a context was recently exited.