Support asynchronous patching operations in the component updater.

chrome/browser/component_updater/test/component_patcher_unittest.cc

Index: chrome/browser/component_updater/test/component_patcher_unittest.cc
diff --git a/chrome/browser/component_updater/test/component_patcher_unittest.cc b/chrome/browser/component_updater/test/component_patcher_unittest.cc
index 67256f9e36b6925ce39530a2794562114887aa21..13048e5ac01633773dfd083ffbf1bbb1300c5454 100644
--- a/chrome/browser/component_updater/test/component_patcher_unittest.cc
+++ b/chrome/browser/component_updater/test/component_patcher_unittest.cc
@@ -19,6 +19,8 @@
 #include "courgette/third_party/bsdiff.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+namespace component_updater {
+
 base::FilePath test_file(const char* file) {
   base::FilePath path;
   PathService::Get(chrome::DIR_TEST_DATA, &path);
@@ -179,3 +181,5 @@ TEST_F(ComponentPatcherOperationTest, CheckBsdiffOperation) {
       unpack_dir_.path().Append(FILE_PATH_LITERAL("output.bin")),
       test_file("binary_output.bin")));
 }
+
+}  // namespace component_updater