Defer ARC file system operations while ARC is booting.

chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc

Index: chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc
diff --git a/chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc b/chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc
index 4ad000efdfff1d6b55ed9ed0376e383484865221..fb589412b5d833993f376e1f55f09289eae9c54e 100644
--- a/chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc
+++ b/chrome/browser/chromeos/arc/fileapi/arc_content_file_system_async_file_util_unittest.cc
@@ -14,7 +14,7 @@
 #include "chrome/browser/chromeos/fileapi/external_file_url_util.h"
 #include "components/arc/arc_bridge_service.h"
 #include "components/arc/arc_service_manager.h"
-#include "components/arc/test/fake_file_system_instance.h"
+#include "components/arc/file_system/test/fake_arc_file_system_operation_runner.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "storage/browser/fileapi/file_system_url.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -26,8 +26,13 @@ namespace {
 constexpr char kArcUrl[] = "content://org.chromium.foo/bar";
 constexpr int64_t kSize = 123456;
 
-class ArcFileSystemInstanceTestImpl : public FakeFileSystemInstance {
+class ArcFileSystemOperationRunnerForTest
+    : public FakeArcFileSystemOperationRunner {
  public:
+  explicit ArcFileSystemOperationRunnerForTest(ArcBridgeService* bridge_service)
+      : FakeArcFileSystemOperationRunner(bridge_service) {}
+  ~ArcFileSystemOperationRunnerForTest() override = default;
+
   void GetFileSize(const std::string& url,
                    const GetFileSizeCallback& callback) override {
     EXPECT_EQ(kArcUrl, url);
@@ -43,8 +48,9 @@ class ArcContentFileSystemAsyncFileUtilTest : public testing::Test {
 
   void SetUp() override {
     arc_service_manager_ = base::MakeUnique<ArcServiceManager>(nullptr);
-    arc_service_manager_->arc_bridge_service()->file_system()->SetInstance(
-        &file_system_);
+    arc_service_manager_->AddService(
+        base::MakeUnique<ArcFileSystemOperationRunnerForTest>(
+            arc_service_manager_->arc_bridge_service()));
   }
 
  protected:
@@ -62,7 +68,6 @@ class ArcContentFileSystemAsyncFileUtilTest : public testing::Test {
 
   content::TestBrowserThreadBundle thread_bundle_;
   std::unique_ptr<ArcServiceManager> arc_service_manager_;
-  ArcFileSystemInstanceTestImpl file_system_;
   ArcContentFileSystemAsyncFileUtil async_file_util_;
 
  private: