Crash fix: Ignore mojo Create() calls after RFH is dead.

chrome/browser/media/cast_remoting_connector.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_MEDIA_CAST_REMOTING_CONNECTOR_H_
 #define CHROME_BROWSER_MEDIA_CAST_REMOTING_CONNECTOR_H_
 
 #include <set>
 
 #include "base/memory/weak_ptr.h"
@@ skipping 54 matching lines @@
 // start/execute/stop remoting sessions.
 class CastRemotingConnector
     : public base::SupportsUserData::Data,
       public media_router::MediaRoutesObserver {
  public:
   // Returns the instance of the CastRemotingConnector associated with
   // |source_contents|, creating a new instance if needed.
   static CastRemotingConnector* Get(content::WebContents* source_contents);
 
   // Used by ChromeContentBrowserClient to request a binding to a new
-  // RemoterFactory for each new render frame. The |render_frame_host| is
-  // expected to outlive the mojo message pipe in |request| that the service
-  // binds to.
+  // RemoterFactory for each new render frame.
   static void CreateRemoterFactory(content::RenderFrameHost* render_frame_host,
                                    media::mojom::RemoterFactoryRequest request);
 
  private:
   // Allow unit tests access to the private constructor and CreateBridge()
   // method, since unit tests don't have a complete browser (i.e., with a
   // WebContents and RenderFrameHost) to work with.
   friend class CastRemotingConnectorTest;
 
   // Implementation of the media::mojom::RemoterFactory, with one instance
@@ skipping 112 matching lines @@
   base::WeakPtrFactory<CastRemotingConnector> weak_factory_;
 
   // Key used with the base::SupportsUserData interface to search for an
   // instance of CastRemotingConnector owned by a WebContents.
   static const void* const kUserDataKey;
 
   DISALLOW_COPY_AND_ASSIGN(CastRemotingConnector);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_CAST_REMOTING_CONNECTOR_H_