Add methods to enable configuration of ResourceConstraints based on limits derived at runtime.

include/v8.h

Index: include/v8.h
diff --git a/include/v8.h b/include/v8.h
index 79f4478ea6f626ff297314b4ed227d5dc088abed..3b03d1b2c8f895f3f592237fe7f73e9b5d25b8ea 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -3762,9 +3762,27 @@ class V8_EXPORT ResourceConstraints {
 };
 
 
+/**
+ * Sets the given ResourceConstraints on the current isolate.
+ */
 bool V8_EXPORT SetResourceConstraints(ResourceConstraints* constraints);
 
 
+/**
+ * Configures the constraints with reasonable default values based on the
+ * capabilities of the current device the VM is running on.
+ */
+bool V8_EXPORT ConfigureResourceConstraintsForCurrentPlatform(
+    ResourceConstraints* constraints);
+
+
+/**
+ * Convience function which performs SetResourceConstraints with the settings
+ * returned by ConfigureResourceConstraintsForCurrentPlatform.
+ */
+bool V8_EXPORT SetDefaultResourceConstraintsForCurrentPlatform();
+
+
 // --- Exceptions ---