Upstream the Media Router's Issue class.

chrome/browser/media/router/issue.h

Index: chrome/browser/media/router/issue.h
diff --git a/chrome/browser/media/router/issue.h b/chrome/browser/media/router/issue.h
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index 0000000000000000000000000000000000000000..460106d717458631d26daf59179c116718e1964a
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+++ b/chrome/browser/media/router/issue.h
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+// 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 CHROME_BROWSER_MEDIA_ROUTER_ISSUE_H_
+#define CHROME_BROWSER_MEDIA_ROUTER_ISSUE_H_
+
+#include <string>
+#include <vector>
+
+#include "base/logging.h"
+#include "chrome/browser/media/router/media_route.h"
+
+namespace media_router {
+
+// The text that corresponds with an action a user can take for a Issue.
+class IssueAction {
+ public:
+  enum Type { OK, CANCEL, DISMISS, LEARN_MORE };
+
+  explicit IssueAction(const Type type);
+  ~IssueAction();
+
+  Type type() const { return type_; }
+
+  bool Equals(const IssueAction& other) const { return type_ == other.type_; }
+
+ private:
+  Type type_;
+};
+
+// Contains the information relevant to an issue.
+class Issue {
+ public:
+  using IssueId = std::string;
+
+  enum Severity { FATAL, WARNING, NOTIFICATION };
+
+  // Creates a custom issue.
+  // |title|: The title for the issue.
+  // |message|: The optional description message for the issue.
+  // |default_action|: Default action user can take to resolve the issue.
+  // |secondary_actions|: Array of options user can take to resolve the
+  //                      issue. Can be empty. Currently only one secondary
+  //                      action is supported.
+  // |route_id|: The route id, or empty if global.
+  // |severity|: The severity of the issue.
+  // |is_blocking|: True if the issue needs to be resolved before continuing.
+  // |help_url|: Required if one of the actions is learn-more.
+  Issue(const std::string& title,
+        const std::string& message,
+        const IssueAction& default_action,
+        const std::vector<IssueAction>& secondary_actions,
+        const MediaRouteId& route_id,
+        const Severity severity,
+        bool is_blocking,
+        const std::string& helpUrl);
+
+  ~Issue();
+
+  // See constructor comments for more information about these fields.
+  const std::string& title() const { return title_; }
+  const std::string& message() const { return message_; }
+  IssueAction default_action() const { return default_action_; }
+  const std::vector<IssueAction>& secondary_actions() const {
+    return secondary_actions_;
+  }
+  MediaRouteId route_id() const { return route_id_; }
+  Severity severity() const { return severity_; }
+  const IssueId& id() const { return id_; }
+  bool is_blocking() const {

[apacible, 2015/05/04 21:14:32]

Nit: Can this fit into one line? (Same below)

[Kevin M, 2015/05/04 23:40:18]

Done.

+    return is_blocking_;
+  }
+  bool is_global() const {
+    return route_id_.empty();
+  }
+  const GURL& help_url() const { return help_url_; }
+
+  bool Equals(const Issue& other) const;
+
+ private:
+  std::string title_;
+  std::string message_;
+  IssueAction default_action_;
+  std::vector<IssueAction> secondary_actions_;
+  std::string route_id_;
+  Severity severity_;
+  IssueId id_;
+  bool is_blocking_;
+  GURL help_url_;
+};
+
+}  // namespace media_router
+
+#endif  // CHROME_BROWSER_MEDIA_ROUTER_ISSUE_H_