Revert of Convert MediaRouter mojom apis to intake url::Origin objects instead of strings

chrome/browser/media/router/media_sinks_observer.h

Index: chrome/browser/media/router/media_sinks_observer.h
diff --git a/chrome/browser/media/router/media_sinks_observer.h b/chrome/browser/media/router/media_sinks_observer.h
index 91741abc789f7a35bd8366424972c0ec452089bd..5a87f27321f890801f695c3e6378cec1a4d3459d 100644
--- a/chrome/browser/media/router/media_sinks_observer.h
+++ b/chrome/browser/media/router/media_sinks_observer.h
@@ -10,7 +10,7 @@
 #include "base/macros.h"
 #include "chrome/browser/media/router/media_sink.h"
 #include "chrome/browser/media/router/media_source.h"
-#include "url/origin.h"
+#include "url/gurl.h"
 
 namespace media_router {
 
@@ -28,7 +28,7 @@
   // with |source|.
   MediaSinksObserver(MediaRouter* router,
                      const MediaSource& source,
-                     const url::Origin& origin);
+                     const GURL& origin);
   virtual ~MediaSinksObserver();
 
   // Registers with MediaRouter to start observing. Must be called before the
@@ -42,7 +42,7 @@
   // will be invoked with |sinks|. Otherwise, it will be invoked with an empty
   // list.
   void OnSinksUpdated(const std::vector<MediaSink>& sinks,
-                      const std::vector<url::Origin>& origins);
+                      const std::vector<GURL>& origins);
 
   const MediaSource& source() const { return source_; }
 
@@ -55,7 +55,7 @@
 
  private:
   const MediaSource source_;
-  const url::Origin origin_;
+  const GURL origin_;
   MediaRouter* const router_;
   bool initialized_;