components: Provide an unified target to generate components_tests_resources.pak.

components/test/run_all_unittests.cc

Index: components/test/run_all_unittests.cc
diff --git a/components/test/run_all_unittests.cc b/components/test/run_all_unittests.cc
index 00d8594a1ce897a6c6c2eb87d2937fc80c3d2b85..17cbfa665871ed740eb3312360275c578bcdc5c8 100644
--- a/components/test/run_all_unittests.cc
+++ b/components/test/run_all_unittests.cc
@@ -62,7 +62,7 @@ class ComponentsTestSuite : public base::TestSuite {
     PathService::Get(base::DIR_MODULE, &resources_pack_path);
 #endif
     ui::ResourceBundle::InitSharedInstanceWithPakPath(
-        resources_pack_path.AppendASCII("components_unittests_resources.pak"));
+        resources_pack_path.AppendASCII("components_tests_resources.pak"));
 
     // These schemes need to be added globally to pass tests of
     // autocomplete_input_unittest.cc and content_settings_pattern*