Add timestamp support to the Previews infobar

chrome/browser/ui/android/infobars/previews_infobar.h

Index: chrome/browser/ui/android/infobars/previews_infobar.h
diff --git a/chrome/browser/ui/android/infobars/previews_infobar.h b/chrome/browser/ui/android/infobars/previews_infobar.h
new file mode 100644
index 0000000000000000000000000000000000000000..8c71ca8353468440fe535afcdb30514881a9f351
--- /dev/null
+++ b/chrome/browser/ui/android/infobars/previews_infobar.h
@@ -0,0 +1,32 @@
+// 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 CHROME_BROWSER_UI_ANDROID_INFOBARS_PREVIEWS_INFOBAR_H_
+#define CHROME_BROWSER_UI_ANDROID_INFOBARS_PREVIEWS_INFOBAR_H_
+
+#include "base/android/scoped_java_ref.h"
+#include "base/macros.h"
+#include "chrome/browser/previews/previews_infobar_delegate.h"
+#include "chrome/browser/ui/android/infobars/confirm_infobar.h"
+
+class PreviewsInfoBar : public ConfirmInfoBar {
+ public:
+  explicit PreviewsInfoBar(std::unique_ptr<PreviewsInfoBarDelegate> delegate);
+
+  ~PreviewsInfoBar() override;
+
+  // Returns a Previews infobar that owns |delegate|.
+  static std::unique_ptr<infobars::InfoBar> CreateInfoBar(
+      infobars::InfoBarManager* infobar_manager,
+      std::unique_ptr<PreviewsInfoBarDelegate> delegate);
+
+ private:
+  // ConfirmInfoBar:
+  base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
+      JNIEnv* env) override;
+
+  DISALLOW_COPY_AND_ASSIGN(PreviewsInfoBar);
+};
+
+#endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_PREVIEWS_INFOBAR_H_