Move FakeWebHistoryService to components/history

components/history/core/test/fake_web_history_service.h

Index: components/history/core/test/fake_web_history_service.h
diff --git a/components/history/core/test/fake_web_history_service.h b/components/history/core/test/fake_web_history_service.h
new file mode 100644
index 0000000000000000000000000000000000000000..79a5b37bc5fde0c57bbbd7840268e6497374bf2c
--- /dev/null
+++ b/components/history/core/test/fake_web_history_service.h
@@ -0,0 +1,76 @@
+// Copyright 2015 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_HISTORY_CORE_BROWSER_FAKE_WEB_HISTORY_SERVICE_H_
+#define COMPONENTS_HISTORY_CORE_BROWSER_FAKE_WEB_HISTORY_SERVICE_H_
+
+#include <string>
+#include <vector>
+
+#include "base/macros.h"
+#include "base/time/time.h"
+#include "components/history/core/browser/web_history_service.h"
+#include "url/gurl.h"
+
+class OAuth2TokenService;
+class SigninManagerBase;
+
+namespace history {
+
+// A fake WebHistoryService for testing.
+//
+// Use |AddSyncedVisit| to fill the fake server-side database of synced visits.
+// Use |SetupFakeResponse| to influence whether the requests should succeed
+// or fail, and with which error code.
+//
+// Note: Currently, the only test that uses this class only counts the number
+// of visits and does not inspect their contents. Therefore, the behavior
+// of this class is only defined for |WebHistoryService::QueryHistory| queries
+// and even for them, we only return the correct number of items, without
+// contents.
+//
+// TODO(msramek): This class might need its own set of tests.
+class FakeWebHistoryService : public history::WebHistoryService {
+ public:
+  FakeWebHistoryService(
+      OAuth2TokenService* token_service,
+      SigninManagerBase* signin_manager,
+      const scoped_refptr<net::URLRequestContextGetter>& request_context);
+  ~FakeWebHistoryService() override;
+
+  // Sets up the behavior of the fake response returned when calling
+  // |WebHistoryService::QueryHistory|; whether it will succeed, and with
+  // which response code.
+  void SetupFakeResponse(bool emulate_success, int emulate_response_code);
+
+  // Adds a fake visit.
+  void AddSyncedVisit(std::string url, base::Time timestamp);
+
+  // Clears all fake visits.
+  void ClearSyncedVisits();
+
+  // Counts the number of visits within a certain time range.
+  int GetNumberOfVisitsBetween(const base::Time& begin, const base::Time& end);
+
+ private:
+  base::Time GetTimeForKeyInQuery(const GURL& url, const std::string& key);
+
+  // WebHistoryService:
+  Request* CreateRequest(const GURL& url,
+                         const CompletionCallback& callback) override;
+
+  // Parameters for the fake request.
+  bool emulate_success_;
+  int emulate_response_code_;
+
+  // Fake visits storage.
+  typedef std::pair<std::string, base::Time> Visit;
+  std::vector<Visit> visits_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeWebHistoryService);
+};
+
+}  // namespace history
+
+#endif  // COMPONENTS_HISTORY_CORE_BROWSER_FAKE_WEB_HISTORY_SERVICE_H_