Avoid calling GC in Context::New on Android devices.

src/api.cc

Index: src/api.cc
===================================================================
--- src/api.cc	(revision 2653)
+++ src/api.cc	(working copy)
@@ -2589,9 +2589,12 @@
   i::Handle<i::Context> env;
   {
     ENTER_V8;
+#if defined(ANDROID)
+    // On mobile devices, full GC is expensive.
+#else
     // Give the heap a chance to cleanup if we've disposed contexts.
     i::Heap::CollectAllGarbageIfContextDisposed();
-
+#endif
     v8::Handle<ObjectTemplate> proxy_template = global_template;
     i::Handle<i::FunctionTemplateInfo> proxy_constructor;
     i::Handle<i::FunctionTemplateInfo> global_constructor;