Compile FileCache related drive components only on Chrome OS.

BUG=533750
TEST=builds pass

Review URL: https://codereview.chromium.org/1528323004

Cr-Commit-Position: refs/heads/master@{#367808}

1 files changed, 86 insertions, 0 deletions

diff --git a/components/drive/chromeos/drive_test_util.h b/components/drive/chromeos/drive_test_util.h
new file mode 100644
index 0000000..d448e6c
--- /dev/null
+++ b/components/drive/chromeos/drive_test_util.h
@@ -0,0 +1,86 @@
+// Copyright (c) 2012 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.
+
+#ifndef COMPONENTS_DRIVE_CHROMEOS_DRIVE_TEST_UTIL_H_
+#define COMPONENTS_DRIVE_CHROMEOS_DRIVE_TEST_UTIL_H_
+
+#include <stdint.h>
+
+#include <string>
+
+#include "components/drive/chromeos/file_cache.h"
+#include "content/public/test/test_utils.h"
+#include "google_apis/drive/test_util.h"
+#include "net/base/completion_callback.h"
+#include "net/base/io_buffer.h"
+#include "net/base/network_change_notifier.h"
+#include "net/base/test_completion_callback.h"
+
+class PrefRegistrySimple;
+
+namespace net {
+class IOBuffer;
+}  // namespace net
+
+namespace drive {
+
+namespace test_util {
+
+// Disk space size used by FakeFreeDiskSpaceGetter.
+const int64_t kLotsOfSpace = drive::internal::kMinFreeSpaceInBytes * 10;
+
+// Helper to destroy objects which needs Destroy() to be called on destruction.
+// Note: When using this helper, you should destruct objects before
+// BrowserThread.
+struct DestroyHelperForTests {
+  template<typename T>
+  void operator()(T* object) const {
+    if (object) {
+      object->Destroy();
+      content::RunAllBlockingPoolTasksUntilIdle();  // Finish destruction.
+    }
+  }
+};
+
+// Reads all the data from |reader| and copies to |content|. Returns net::Error
+// code.
+template<typename Reader>
+int ReadAllData(Reader* reader, std::string* content) {
+  const int kBufferSize = 10;
+  scoped_refptr<net::IOBuffer> buffer(new net::IOBuffer(kBufferSize));
+  while (true) {
+    net::TestCompletionCallback callback;
+    int result = reader->Read(buffer.get(), kBufferSize, callback.callback());
+    result = callback.GetResult(result);
+    if (result <= 0) {
+      // Found an error or EOF. Return it. Note: net::OK is 0.
+      return result;
+    }
+    content->append(buffer->data(), result);
+  }
+}
+
+// Registers Drive related preferences in |pref_registry|. Drive related
+// preferences should be registered as TestingPrefServiceSimple will crash if
+// unregistered preference is referenced.
+void RegisterDrivePrefs(PrefRegistrySimple* pref_registry);
+
+// Fake NetworkChangeNotifier implementation.
+class FakeNetworkChangeNotifier : public net::NetworkChangeNotifier {
+ public:
+  FakeNetworkChangeNotifier();
+
+  void SetConnectionType(ConnectionType type);
+
+  // NetworkChangeNotifier override.
+  ConnectionType GetCurrentConnectionType() const override;
+
+ private:
+  net::NetworkChangeNotifier::ConnectionType type_;
+};
+
+}  // namespace test_util
+}  // namespace drive
+
+#endif  // COMPONENTS_DRIVE_CHROMEOS_DRIVE_TEST_UTIL_H_