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

ppapi/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.
 
 assert(!is_android || enable_plugins,
        "//ppapi should not be referenced when is_android && !enable_plugins")
 
 copy("copy_test_files") {
   visibility = [ ":*" ]
   sources = [
@@ skipping 52 matching lines @@
     "tests/test_utils.cc",
   ]
 
   deps = [
     "//build/config/sanitizers:deps",
     "//ppapi/cpp",
     "//ppapi/shared_impl",
   ]
 }
 
-shared_library("blink_test_plugin") {
+loadable_module("blink_test_plugin") {
   sources = [
     "tests/blink_test_plugin.cc",
   ]
 
   deps = [
     "//build/config/sanitizers:deps",
     "//ppapi/cpp",
     "//ppapi/shared_impl",
   ]
 }
@@ skipping 277 matching lines @@
       ":ppapi_nacl_tests_nmf(//build/toolchain/nacl:glibc_${target_cpu})",
     ]
     if (enable_pnacl) {
       data_deps += [
         ":ppapi_nacl_tests_nmf(//build/toolchain/nacl:newlib_pnacl)",
         ":ppapi_nacl_tests_pnacl_nonsfi_nmf(//build/toolchain/nacl:newlib_pnacl_nonsfi)",
       ]
     }
   }
 }