Upstream ChromeBrowserState sub-classes.

ios/chrome/browser/browser_state/test_chrome_browser_state_manager.h

Index: ios/chrome/browser/browser_state/test_chrome_browser_state_manager.h
diff --git a/ios/chrome/browser/browser_state/test_chrome_browser_state_manager.h b/ios/chrome/browser/browser_state/test_chrome_browser_state_manager.h
new file mode 100644
index 0000000000000000000000000000000000000000..16e13592ff6f5c2e7142fd9949642b5d35dccc4b
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+++ b/ios/chrome/browser/browser_state/test_chrome_browser_state_manager.h
@@ -0,0 +1,36 @@
+// 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.
+
+#ifndef IOS_CHROME_BROWSER_BROWSER_STATE_TEST_CHROME_BROWSER_STATE_MANAGER_H_
+#define IOS_CHROME_BROWSER_BROWSER_STATE_TEST_CHROME_BROWSER_STATE_MANAGER_H_
+
+#include "base/macros.h"
+#include "ios/chrome/browser/browser_state/browser_state_info_cache.h"
+#include "ios/chrome/test/ios_chrome_scoped_testing_local_state.h"
+#include "ios/public/provider/chrome/browser/browser_state/chrome_browser_state_manager.h"
+
+namespace ios {
+class ChromeBrowserState;
+}
+
+// ChromeBrowserStateManager implementation for tests.
+class TestChromeBrowserStateManager : public ios::ChromeBrowserStateManager {
+ public:
+  explicit TestChromeBrowserStateManager(const base::FilePath& user_data_dir);
+  ~TestChromeBrowserStateManager() override;
+
+  // ChromeBrowserStateManager:
+  ios::ChromeBrowserState* GetLastUsedBrowserState() override;
+  ios::ChromeBrowserState* GetBrowserState(const base::FilePath& path) override;
+  BrowserStateInfoCache* GetBrowserStateInfoCache() override;
+  std::vector<ios::ChromeBrowserState*> GetLoadedBrowserStates() override;
+
+ private:
+  IOSChromeScopedTestingLocalState local_state_;
+  BrowserStateInfoCache browser_state_info_cache_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestChromeBrowserStateManager);
+};
+
+#endif  // IOS_CHROME_BROWSER_BROWSER_STATE_TEST_CHROME_BROWSER_STATE_MANAGER_H_