UI for the Data Saver InfoBar Promo

chrome/browser/net/spdyproxy/data_reduction_promo_infobar_delegate_android.h

+// 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 CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROMO_INFOBAR_DELEGATE_ANDROID_H_
+#define CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROMO_INFOBAR_DELEGATE_ANDROID_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "components/infobars/core/confirm_infobar_delegate.h"
+#include "components/infobars/core/infobar_delegate.h"
+
+namespace content {
+class WebContents;
+}
+
+namespace infobars {
+class InfoBarManager;
+}
+
+// Configures an InfoBar with no buttons that stays visible until it is
+// explicitly dismissed. This InfoBar is suitable for displaying a message
+// and a link, and is used only by an Android field trial.

[Raj, 2016/06/25 01:21:10]

nit: Mentioning about field trial here is not very relevant.
You could remove it or add something generic like,
and is used to promote data reduction proxy to non-users of it.

[megjablon, 2016/06/27 19:57:09]

Done.

+class DataReductionPromoInfoBarDelegateAndroid : public ConfirmInfoBarDelegate {
+ public:
+  // Creates the InfoBar and adds it to the provided |web_contents|.
+  static void Create(content::WebContents* web_contents);
+
+  ~DataReductionPromoInfoBarDelegateAndroid() {}
+
+ private:
+  DataReductionPromoInfoBarDelegateAndroid();
+
+  // Returns a Data Reduction Proxy InfoBar that owns |delegate|.
+  static std::unique_ptr<infobars::InfoBar> CreateInfoBar(
+      infobars::InfoBarManager* infobar_manager,
+      std::unique_ptr<DataReductionPromoInfoBarDelegateAndroid> delegate);
+
+  // ConfirmInfoBarDelegate
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
+  base::string16 GetMessageText() const override;
+
+  DISALLOW_COPY_AND_ASSIGN(DataReductionPromoInfoBarDelegateAndroid);
+};
+
+#endif  // CHROME_BROWSER_NET_SPDYPROXY_DATA_REDUCTION_PROMO_INFOBAR_DELEGATE_ANDROID_H_