Oilpan: Add ENABLE_LAZY_SWEEPING and ENABLE_IDLE_GC to features.gypi

Source/wtf/AddressSanitizer.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef WTF_AddressSanitizer_h
 #define WTF_AddressSanitizer_h
 
 // TODO(sof): Add SyZyASan support?
 #if defined(ADDRESS_SANITIZER)
 #include <sanitizer/asan_interface.h>
@@ skipping 10 matching lines @@
 #define __lsan_register_root_region(addr, size) ((void)(addr), (void)(size))
 #define __lsan_unregister_root_region(addr, size) ((void)(addr), (void)(size))
 #endif
 
 // TODO(sof): Have to handle (ADDRESS_SANITIZER && _WIN32) differently as it
 // uses both Clang (which supports the __attribute__ syntax) and CL (which doesn't)
 // as long as we use "clang-cl /fallback". This shouldn't be needed when Clang
 // handles all the code without falling back to CL.
 #if defined(ADDRESS_SANITIZER) && (!OS(WIN) || COMPILER(CLANG))
 #define NO_SANITIZE_ADDRESS __attribute__((no_sanitize_address))
-#if ENABLE(OILPAN)
-// TODO(Oilpan): a temporary annotation while lazy sweeping is phased in.
-// Remove the ENABLE(OILPAN) condition when lazy sweeping is globally enabled.
+#if ENABLE(LAZY_SWEEPING)
 #define NO_LAZY_SWEEP_SANITIZE_ADDRESS NO_SANITIZE_ADDRESS
 #else
 #define NO_LAZY_SWEEP_SANITIZE_ADDRESS
 #endif
 #else
 #define NO_SANITIZE_ADDRESS
 #define NO_LAZY_SWEEP_SANITIZE_ADDRESS
 #endif
 
 #endif // WTF_AddressSanitizer_h