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

third_party/mojo/src/mojo/edk/test/BUILD.gn

Index: third_party/mojo/src/mojo/edk/test/BUILD.gn
diff --git a/third_party/mojo/src/mojo/edk/test/BUILD.gn b/third_party/mojo/src/mojo/edk/test/BUILD.gn
index 05e5904fe97167659fbba2f902e564dadfa0089a..2232a5e49f323f4f3097a9834e09a1877add6959 100644
--- a/third_party/mojo/src/mojo/edk/test/BUILD.gn
+++ b/third_party/mojo/src/mojo/edk/test/BUILD.gn
@@ -96,6 +96,12 @@ test("mojo_public_bindings_unittests") {
     ":run_all_unittests",
     "//mojo/public/cpp/bindings/tests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }
 
 test("mojo_public_bindings_perftests") {
@@ -103,6 +109,12 @@ test("mojo_public_bindings_perftests") {
     ":run_all_perftests",
     "//mojo/public/cpp/bindings/tests:perftests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }
 
 test("mojo_public_environment_unittests") {
@@ -110,6 +122,12 @@ test("mojo_public_environment_unittests") {
     ":run_all_unittests",
     "//mojo/public/cpp/environment/tests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }
 
 test("mojo_public_system_perftests") {
@@ -117,6 +135,12 @@ test("mojo_public_system_perftests") {
     ":run_all_perftests",
     "//mojo/public/c/system/tests:perftests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }
 
 test("mojo_public_system_unittests") {
@@ -124,6 +148,12 @@ test("mojo_public_system_unittests") {
     ":run_all_unittests",
     "//mojo/public/cpp/system/tests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }
 
 test("mojo_public_utility_unittests") {
@@ -131,4 +161,10 @@ test("mojo_public_utility_unittests") {
     ":run_all_unittests",
     "//mojo/public/cpp/utility/tests",
   ]
+
+  if (is_linux && !is_component_build) {
+    # This tests dynamically loads libmojo_test_support even in non-component
+    # builds.
+    configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
+  }
 }