Update from https://crrev.com/333737

build/config/sanitizers/BUILD.gn

 # Copyright 2014 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.
 
-# Contains the dependencies needed for asan to link into executables and
+import("//build/config/sanitizers/sanitizers.gni")
+
+# Contains the dependencies needed for sanitizers to link into executables and
 # shared_libraries. Unconditionally depend upon this target as it is empty if
-# |is_asan| is false.
+# |is_asan|, |is_lsan|, |is_tsan|, |is_msan| and |use_custom_libcxx| are false.
 group("deps") {
-  if (is_asan) {
+  # TODO(vtl): Chromium has the following (but we don't have
+  # instrumented_libraries).
+  # deps = [
+  #   "//third_party/instrumented_libraries:deps",
+  # ]
+  deps = []
+  if (is_asan || is_lsan || is_tsan || is_msan) {
     public_configs = [ ":sanitizer_options_link_helper" ]
-    deps = [
-      ":options_sources",
-    ]
+    deps += [ ":options_sources" ]
+  }
+  if (use_custom_libcxx) {
+    deps += [ "//buildtools/third_party/libc++:libcxx_proxy" ]
   }
 }
 
 config("sanitizer_options_link_helper") {
-  ldflags = [
-    "-Wl,-u_sanitizer_options_link_helper",
-    "-fsanitize=address",
-  ]
+  ldflags = [ "-Wl,-u_sanitizer_options_link_helper" ]
+  if (is_asan) {
+    ldflags += [ "-fsanitize=address" ]
+  }
+  if (is_lsan) {
+    ldflags += [ "-fsanitize=leak" ]
+  }
+  if (is_tsan) {
+    ldflags += [ "-fsanitize=thread" ]
+  }
+  if (is_msan) {
+    ldflags += [ "-fsanitize=memory" ]
+  }
 }
 
 source_set("options_sources") {
   visibility = [
     ":deps",
     "//:gn_visibility",
   ]
   sources = [
     "//build/sanitizers/sanitizer_options.cc",
   ]
 
   if (is_asan) {
     sources += [ "//build/sanitizers/asan_suppressions.cc" ]
   }
 
+  if (is_lsan) {
+    sources += [ "//build/sanitizers/lsan_suppressions.cc" ]
+  }
+
   if (is_tsan) {
     sources += [ "//build/sanitizers/tsan_suppressions.cc" ]
   }
 }