Make FormFetcher a PasswordStoreConsumer

components/password_manager/core/browser/fake_form_fetcher.h

Index: components/password_manager/core/browser/fake_form_fetcher.h
diff --git a/components/password_manager/core/browser/fake_form_fetcher.h b/components/password_manager/core/browser/fake_form_fetcher.h
new file mode 100644
index 0000000000000000000000000000000000000000..e8d6f139695a54da6b1c3c63766558f257ec91be
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+++ b/components/password_manager/core/browser/fake_form_fetcher.h
@@ -0,0 +1,75 @@
+// Copyright 2016 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_PASSWORD_MANAGER_CORE_BROWSER_FAKE_FORM_FETCHER_H_
+#define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_FAKE_FORM_FETCHER_H_
+
+#include <set>
+#include <vector>
+
+#include "base/macros.h"
+#include "components/password_manager/core/browser/form_fetcher.h"
+
+namespace autofill {
+struct PasswordForm;
+}
+
+namespace password_manager {
+
+struct InteractionsStats;
+
+// Test implementation of FormFetcher useful for simple fakes and as a base for
+// mocks.
+class FakeFormFetcher : public FormFetcher {
+ public:
+  FakeFormFetcher();
+
+  ~FakeFormFetcher() override;
+
+  // Registers consumers to be notified when results are set. Unlike the
+  // production version, assumes that results have not arrived yet, i.e., one
+  // has to first call AddConsumer and then SetNonFederated.
+  void AddConsumer(Consumer* consumer) override;
+
+  // Returns State::WAITING if Fetch() was called after any Set* calls, and
+  // State::NOT_WAITING otherwise.
+  State GetState() const override;
+
+  // Statistics for recent password bubble usage.
+  const std::vector<const InteractionsStats*>& GetInteractionsStats()
+      const override;
+
+  void set_stats(const std::vector<const InteractionsStats*>& stats) {
+    state_ = State::NOT_WAITING;
+    stats_ = stats;
+  }
+
+  const std::vector<const autofill::PasswordForm*>& GetFederatedMatches()
+      const override;
+
+  void set_federated(
+      const std::vector<const autofill::PasswordForm*>& federated) {
+    state_ = State::NOT_WAITING;
+    federated_ = federated;
+  }
+
+  void SetNonFederated(
+      const std::vector<const autofill::PasswordForm*>& non_federated,
+      size_t filtered_count);
+
+  // Only sets the internal state to WAITING, no call to PasswordStore.
+  void Fetch() override;
+
+ private:
+  std::set<Consumer*> consumers_;
+  State state_ = State::NOT_WAITING;
+  std::vector<const InteractionsStats*> stats_;
+  std::vector<const autofill::PasswordForm*> federated_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeFormFetcher);
+};
+
+}  // namespace password_manager
+
+#endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_FAKE_FORM_FETCHER_H_