base: Discardable memory types.

webkit/child/webkitplatformsupport_child_impl.cc

Index: webkit/child/webkitplatformsupport_child_impl.cc
diff --git a/webkit/child/webkitplatformsupport_child_impl.cc b/webkit/child/webkitplatformsupport_child_impl.cc
index 3bb2b1954cb9d14d475b57ceec74e4e1dd31244b..09cd0b2d17f9b937a083be29d7ba69e76ecf6fee 100644
--- a/webkit/child/webkitplatformsupport_child_impl.cc
+++ b/webkit/child/webkitplatformsupport_child_impl.cc
@@ -93,7 +93,9 @@ void WebKitPlatformSupportChildImpl::didStopWorkerRunLoop(
 
 blink::WebDiscardableMemory*
 WebKitPlatformSupportChildImpl::allocateAndLockDiscardableMemory(size_t bytes) {
-  if (!base::DiscardableMemory::SupportedNatively())
+  base::DiscardableMemoryType type =
+      base::DiscardableMemory::GetPreferredType();
+  if (type == base::DISCARDABLE_MEMORY_TYPE_EMULATED)
     return NULL;
   return WebDiscardableMemoryImpl::CreateLockedMemory(bytes).release();
 }