[Media Router] Clean up issues related code.

chrome/browser/media/router/issue.cc

 // 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.
 
-#include "base/guid.h"
 #include "chrome/browser/media/router/issue.h"
 
 namespace media_router {
 
-IssueAction::IssueAction(const IssueAction::Type type) : type_(type) {
-}
-
-IssueAction::~IssueAction() {
+namespace {
+// ID generator for Issues.
+Issue::Id next_issue_id = 0;

[mark a. foltz, 2016/07/27 18:52:03]

Please use a threadsafe sequence number:

https://cs-staging.chromium.org/chromium/src/base/atomic_sequence_num.h?l=22

[imcheng, 2016/09/13 20:27:54]

Done in IssueManager.

 }
 
 Issue::Issue(const std::string& title,
-             const std::string& message,
-             const IssueAction& default_action,
-             const std::vector<IssueAction>& secondary_actions,
-             const MediaRoute::Id& route_id,
-             const Issue::Severity severity,
-             bool is_blocking,
-             int help_page_id)
-    : title_(title),
-      message_(message),
+             const ActionType& default_action,
+             Severity severity)
+    : id_(next_issue_id++),
+      title_(title),
       default_action_(default_action),
-      secondary_actions_(secondary_actions),
-      route_id_(route_id),
       severity_(severity),
-      id_(base::GenerateGUID()),
-      is_blocking_(is_blocking),
-      help_page_id_(help_page_id) {
-  DCHECK(!title_.empty());
-  DCHECK(severity_ != FATAL || is_blocking_) << "Severity is " << severity_;
-
-  // Check that the default and secondary actions are not of the same type.
-  if (!secondary_actions_.empty())
-    DCHECK_NE(default_action_.type(), secondary_actions_[0].type());
-}
+      is_blocking_(false),
+      help_page_id_(-1) {}
 
 Issue::Issue(const Issue& other) = default;
 
-Issue::~Issue() {
+Issue::~Issue() = default;
+
+bool Issue::IsBlocking() const {
+  return severity_ == Issue::Severity::FATAL || is_blocking_;

[mark a. foltz, 2016/07/27 18:52:03]

or initialize is_blocking_ to severity_ == Issue::Severity::FATAL and make
is_blocking a public member?

[imcheng, 2016/09/13 20:27:54]

Done.

 }
 
-bool Issue::Equals(const Issue& other) const {
-  return id_ == other.id_;
+bool Issue::IsGlobal() const {
+  return route_id_.empty();
 }
 
 }  // namespace media_router