Only set -rpath=$ORIGIN in component builds by default.

base/BUILD.gn

Index: base/BUILD.gn
diff --git a/base/BUILD.gn b/base/BUILD.gn
index 9e4270d26009f853e37dc7af883bed4cb43705c8..7d67f62a688b0214bd3eb95a3cd4612bdd273b6d 100644
--- a/base/BUILD.gn
+++ b/base/BUILD.gn
@@ -1562,11 +1562,18 @@ test("base_unittests") {
   if (is_linux) {
     sources -= [ "file_version_info_unittest.cc" ]
     sources += [ "nix/xdg_util_unittest.cc" ]
+
     deps += [ "//base/test:malloc_wrapper" ]
 
     if (use_glib) {
       configs += [ "//build/config/linux:glib" ]
     }
+
+    if (!is_component_build) {
+      # Set rpath so that we find libmalloc_wrapper.so
+      # even in a non-component build.
+      configs += [ "//build/config/gcc:rpath_link" ]
+    }
   }
 
   if (!is_linux || use_ozone) {