[MediaRouter]Wires up issue manager in MediaRouterMojoImpl.

chrome/browser/media/router/media_router_mojo_impl.h

Index: chrome/browser/media/router/media_router_mojo_impl.h
diff --git a/chrome/browser/media/router/media_router_mojo_impl.h b/chrome/browser/media/router/media_router_mojo_impl.h
index 167b8e37c0cdffd9264c8f2db1a135b80282ea44..5608614a88c6a8773fea96d15b84df86c62cad9a 100644
--- a/chrome/browser/media/router/media_router_mojo_impl.h
+++ b/chrome/browser/media/router/media_router_mojo_impl.h
@@ -19,6 +19,7 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/thread_checker.h"
 #include "chrome/browser/media/router/issue.h"
+#include "chrome/browser/media/router/issue_manager.h"
 #include "chrome/browser/media/router/media_router.h"
 #include "chrome/browser/media/router/media_router.mojom.h"
 
@@ -143,8 +144,6 @@ class MediaRouterMojoImpl : public MediaRouter,
   void DoStopObservingMediaSinks(const MediaSource::Id& source_id);
   void DoStartObservingMediaRoutes();
   void DoStopObservingMediaRoutes();
-  void DoStartObservingIssues();
-  void DoStopObservingIssues();
 
   // Invoked when the next batch of messages arrives.
   // |messages|: A list of messages received.
@@ -176,6 +175,8 @@ class MediaRouterMojoImpl : public MediaRouter,
 
   base::ObserverList<MediaRoutesObserver> routes_observers_;
 
+  IssueManager issue_manager_;

[Kevin M, 2015/07/29 17:41:49]

Make this a pointer so it can accept a mock

[haibinlu, 2015/07/29 18:46:07]

Discussed with Derek, we feel that the cost of mocking issue manager is high in
order to test simple logic.

+
   // Binds |this| to a Mojo connection stub for interfaces::MediaRouter.
   scoped_ptr<mojo::Binding<interfaces::MediaRouter>> binding_;