Add translate client mock.

components/translate/core/browser/mock_translate_client.h

Index: components/translate/core/browser/mock_translate_client.h
diff --git a/components/translate/core/browser/mock_translate_client.h b/components/translate/core/browser/mock_translate_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..bf972ebbe9a25bd854fb1aadf8d11248e56f6f86
--- /dev/null
+++ b/components/translate/core/browser/mock_translate_client.h
@@ -0,0 +1,67 @@
+// Copyright 2017 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_TRANSLATE_CORE_BROWSER_MOCK_TRANSLATE_CLIENT_H_
+#define COMPONENTS_TRANSLATE_CORE_BROWSER_MOCK_TRANSLATE_CLIENT_H_
+
+#include <memory>
+#include <string>
+
+#include "base/memory/ptr_util.h"
+#include "components/infobars/core/infobar.h"
+#include "components/translate/core/browser/translate_client.h"
+#include "components/translate/core/browser/translate_driver.h"
+#include "components/translate/core/browser/translate_prefs.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+namespace translate {
+
+namespace testing {
+
+extern const char* preferred_languages_prefs;
+extern const char* accept_languages_prefs;
+
+class MockTranslateClient : public TranslateClient {
+ public:
+  MockTranslateClient(TranslateDriver* driver, PrefService* prefs);
+
+  ~MockTranslateClient() override;
+
+  TranslateDriver* GetTranslateDriver() override;
+
+  PrefService* GetPrefs() override;
+
+  std::unique_ptr<TranslatePrefs> GetTranslatePrefs() override;
+
+  MOCK_METHOD0(GetTranslateAcceptLanguages, TranslateAcceptLanguages*());
+  MOCK_CONST_METHOD0(GetInfobarIconID, int());
+
+#if !defined(USE_AURA)
+  MOCK_CONST_METHOD1(CreateInfoBarMock,
+                     infobars::InfoBar*(TranslateInfoBarDelegate*));
+  std::unique_ptr<infobars::InfoBar> CreateInfoBar(
+      std::unique_ptr<TranslateInfoBarDelegate> delegate) const {
+    return base::WrapUnique(CreateInfoBarMock(delegate.get()));
+  }
+#endif
+
+  MOCK_METHOD5(ShowTranslateUI,
+               void(translate::TranslateStep,
+                    const std::string&,
+                    const std::string&,
+                    TranslateErrors::Type,
+                    bool));
+  MOCK_METHOD1(IsTranslatableURL, bool(const GURL&));
+  MOCK_METHOD1(ShowReportLanguageDetectionErrorUI, void(const GURL&));
+
+ private:
+  TranslateDriver* driver_;
+  PrefService* prefs_;
+};
+
+}  // namespace testing
+
+}  // namespace translate
+
+#endif  // COMPONENTS_TRANSLATE_CORE_BROWSER_MOCK_TRANSLATE_CLIENT_H_