Move Demuxer::set_host() to Initialize().

media/base/demuxer.h

Index: media/base/demuxer.h
diff --git a/media/base/demuxer.h b/media/base/demuxer.h
index 3647a9d54505106fb160ed5061cdbd7433b133b7..4458ce0418a7e419f4e1f514a7d3e06a7ebfca4d 100644
--- a/media/base/demuxer.h
+++ b/media/base/demuxer.h
@@ -34,22 +34,16 @@ class MEDIA_EXPORT DemuxerHost : public DataSourceHost {
   virtual void OnDemuxerError(PipelineStatus error) = 0;
 };
 
-class MEDIA_EXPORT Demuxer
-    : public base::RefCountedThreadSafe<Demuxer> {
+class MEDIA_EXPORT Demuxer : public base::RefCountedThreadSafe<Demuxer> {
  public:
   Demuxer();
 
-  // Sets the private member |host_|. This is the first method called by
-  // the DemuxerHost after a demuxer is created.  The host holds a strong
-  // reference to the demuxer.  The reference held by the host is guaranteed
-  // to be released before the host object is destroyed by the pipeline.
-  virtual void set_host(DemuxerHost* host);
-
   // Completes initialization of the demuxer.
   //
-  // TODO(scherkus): pass in DemuxerHost here instead of using set_host(),
-  // see http://crbug.com/111585
-  virtual void Initialize(const PipelineStatusCB& status_cb) = 0;
+  // The demuxer does not own |host| as it is guaranteed to outlive the
+  // lifetime of the demuxer. Don't delete it!
+  virtual void Initialize(DemuxerHost* host,
+                          const PipelineStatusCB& status_cb) = 0;
 
   // The pipeline playback rate has been changed.  Demuxers may implement this
   // method if they need to respond to this call.
@@ -90,19 +84,10 @@ class MEDIA_EXPORT Demuxer
   virtual bool IsSeekable() = 0;
 
  protected:
-  // Only allow derived objects access to the DemuxerHost. This is
-  // kept out of the public interface because demuxers need to be
-  // aware of all calls made to the host object so they can insure
-  // the state presented to the host is always consistent with its own
-  // state.
-  DemuxerHost* host() { return host_; }
-
   friend class base::RefCountedThreadSafe<Demuxer>;
   virtual ~Demuxer();
 
  private:
-  DemuxerHost* host_;
-
   DISALLOW_COPY_AND_ASSIGN(Demuxer);
 };