Add support for refreshing contents of providers which don't support watchers.

chrome/browser/chromeos/file_system_provider/service_unittest.cc

 // 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.
 
 #include "chrome/browser/chromeos/file_system_provider/service.h"
 
 #include <string>
 #include <vector>
 
 #include "base/files/file.h"
@@ skipping 399 matching lines @@
 
 TEST_F(FileSystemProviderServiceTest, RestoreFileSystem_OnExtensionLoad) {
   LoggingObserver observer;
   service_->AddObserver(&observer);
 
   // Remember a fake file system first in order to be able to restore it.
   MountOptions options(kFileSystemId, kDisplayName);
   options.supports_notify_tag = true;
   ProvidedFileSystemInfo file_system_info(
       kExtensionId, options, base::FilePath(FILE_PATH_LITERAL("/a/b/c")),
-      false /* configurable */, extensions::SOURCE_FILE);
+      false /* configurable */, false /* watchable */, extensions::SOURCE_FILE);
   Watchers fake_watchers;
   fake_watchers[WatcherKey(fake_watcher_.entry_path, fake_watcher_.recursive)] =
       fake_watcher_;
   registry_->RememberFileSystem(file_system_info, fake_watchers);
 
   EXPECT_EQ(0u, observer.mounts.size());
 
   // Directly call the observer's method.
   service_->OnExtensionLoaded(profile_, extension_.get());
 
   ASSERT_EQ(1u, observer.mounts.size());
   EXPECT_EQ(base::File::FILE_OK, observer.mounts[0].error());
   EXPECT_EQ(MOUNT_CONTEXT_RESTORE, observer.mounts[0].context());
 
   EXPECT_EQ(file_system_info.extension_id(),
             observer.mounts[0].file_system_info().extension_id());
   EXPECT_EQ(file_system_info.file_system_id(),
             observer.mounts[0].file_system_info().file_system_id());
   EXPECT_EQ(file_system_info.writable(),
-            observer.mounts[0].file_system_info().writable());
+            observer.mounts[0].file_system_info().watchable());
   EXPECT_EQ(file_system_info.supports_notify_tag(),
             observer.mounts[0].file_system_info().supports_notify_tag());
 
   std::vector<ProvidedFileSystemInfo> file_system_info_list =
       service_->GetProvidedFileSystemInfoList();
   ASSERT_EQ(1u, file_system_info_list.size());
 
   ProvidedFileSystemInterface* const file_system =
       service_->GetProvidedFileSystem(kExtensionId, kFileSystemId);
   ASSERT_TRUE(file_system);
@@ skipping 23 matching lines @@
   EXPECT_EQ(base::File::FILE_OK,
             service_->MountFileSystem(
                 kExtensionId, MountOptions(kFileSystemId, kDisplayName)));
   ASSERT_EQ(1u, observer.mounts.size());
 
   ASSERT_TRUE(registry_->file_system_info());
   EXPECT_EQ(kExtensionId, registry_->file_system_info()->extension_id());
   EXPECT_EQ(kFileSystemId, registry_->file_system_info()->file_system_id());
   EXPECT_EQ(kDisplayName, registry_->file_system_info()->display_name());
   EXPECT_FALSE(registry_->file_system_info()->writable());
+  EXPECT_FALSE(registry_->file_system_info()->configurable());
+  EXPECT_FALSE(registry_->file_system_info()->watchable());
   EXPECT_FALSE(registry_->file_system_info()->supports_notify_tag());
   ASSERT_TRUE(registry_->watchers());
 
   service_->RemoveObserver(&observer);
 }
 
 TEST_F(FileSystemProviderServiceTest, RememberFileSystem_OnUnmountOnShutdown) {
   LoggingObserver observer;
   service_->AddObserver(&observer);
 
@@ skipping 46 matching lines @@
     EXPECT_EQ(1u, observer.unmounts.size());
     EXPECT_FALSE(registry_->file_system_info());
     EXPECT_FALSE(registry_->watchers());
   }
 
   service_->RemoveObserver(&observer);
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos