Revert 274608 "Implement getMediaDevices."

content/browser/renderer_host/media/media_stream_dispatcher_host.h

Index: content/browser/renderer_host/media/media_stream_dispatcher_host.h
===================================================================
--- content/browser/renderer_host/media/media_stream_dispatcher_host.h	(revision 278172)
+++ content/browser/renderer_host/media/media_stream_dispatcher_host.h	(working copy)
@@ -19,7 +19,6 @@
 namespace content {
 
 class MediaStreamManager;
-class ResourceContext;
 
 // MediaStreamDispatcherHost is a delegate for Media Stream API messages used by
 // MediaStreamImpl. It's the complement of MediaStreamDispatcher
@@ -30,8 +29,7 @@
   MediaStreamDispatcherHost(
       int render_process_id,
       const ResourceContext::SaltCallback& salt_callback,
-      MediaStreamManager* media_stream_manager,
-      ResourceContext* resource_context);
+      MediaStreamManager* media_stream_manager);
 
   // MediaStreamRequester implementation.
   virtual void StreamGenerated(
@@ -103,9 +101,6 @@
   ResourceContext::SaltCallback salt_callback_;
   MediaStreamManager* media_stream_manager_;
 
-  // Owned by ProfileIOData which is guaranteed to outlive MSDH.
-  ResourceContext* const resource_context_;
-
   DISALLOW_COPY_AND_ASSIGN(MediaStreamDispatcherHost);
 };