Remove blink-specific global lsan define.

build/config/BUILD.gn

 # Copyright (c) 2013 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.
 
 import("//build/config/allocator.gni")
 import("//build/config/chrome_build.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/dcheck_always_on.gni")
 import("//build/config/features.gni")
@@ skipping 91 matching lines @@
   if (is_asan || is_lsan || is_tsan || is_msan) {
     defines += [
       "MEMORY_TOOL_REPLACES_ALLOCATOR",
       "MEMORY_SANITIZER_INITIAL_SIZE",
     ]
   }
   if (is_asan) {
     defines += [ "ADDRESS_SANITIZER" ]
   }
   if (is_lsan) {
-    defines += [
-      "LEAK_SANITIZER",
-      "WTF_USE_LEAK_SANITIZER=1",
-    ]
+    defines += [ "LEAK_SANITIZER" ]
   }
   if (is_tsan) {
     defines += [
       "THREAD_SANITIZER",
       "DYNAMIC_ANNOTATIONS_EXTERNAL_IMPL=1",
       "WTF_USE_DYNAMIC_ANNOTATIONS_NOIMPL=1",
     ]
   }
   if (is_msan) {
     defines += [ "MEMORY_SANITIZER" ]
@@ skipping 264 matching lines @@
       #
       # TODO(sof): determine VS2015 status and retire the setting from all
       # precompiled configurations.
       cflags_c = [ "/wd4206" ]
     } else if (is_mac) {
       precompiled_header = "build/precompile.h"
       precompiled_source = "//build/precompile.h"
     }
   }
 }