Enable loading native libraries with RTLD_DEEPBIND

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index b75c88894802eb4026af49dbf6c95fcb9c33522a..3345909fa9244b10e98ee309b03ed145f6b93375 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -555,6 +555,7 @@ component("base") {
     "metrics/user_metrics.cc",
     "metrics/user_metrics.h",
     "metrics/user_metrics_action.h",
+    "native_library.cc",
     "native_library.h",
     "native_library_ios.mm",
     "native_library_mac.mm",
@@ -1133,6 +1134,7 @@ component("base") {
       "memory/discardable_shared_memory.cc",
       "memory/discardable_shared_memory.h",
       "memory/shared_memory_posix.cc",
+      "native_library.cc",
       "native_library_posix.cc",
       "path_service.cc",
       "process/kill.cc",
@@ -2007,6 +2009,7 @@ test("base_unittests") {
     ":i18n",
     ":message_loop_tests",
     "//base/allocator:features",
+    "//base/test:native_library_test_utils",
     "//base/test:run_all_base_unittests",
     "//base/test:test_support",
     "//base/third_party/dynamic_annotations",
@@ -2015,6 +2018,10 @@ test("base_unittests") {
     "//third_party/icu",
   ]
 
+  data_deps = [
+    "//base/test:test_shared_library",
+  ]
+
   if (is_ios || is_mac) {
     deps += [ ":base_unittests_arc" ]
   }