Use url::Origin to represent security origins in MediaStream-related code.

content/public/browser/media_device_id.cc

Index: content/public/browser/media_device_id.cc
diff --git a/content/public/browser/media_device_id.cc b/content/public/browser/media_device_id.cc
index 876e12acdb48f95f64df236dba7fcc9bbdad9ca8..d99d0f240c9a5ee21301299c71bd7132d22fa56f 100644
--- a/content/public/browser/media_device_id.cc
+++ b/content/public/browser/media_device_id.cc
@@ -9,14 +9,14 @@
 namespace content {
 
 std::string GetHMACForMediaDeviceID(const ResourceContext::SaltCallback& sc,
-                                    const GURL& security_origin,
+                                    const url::Origin& security_origin,
                                     const std::string& raw_unique_id) {
   return MediaStreamManager::GetHMACForMediaDeviceID(sc, security_origin,
                                                      raw_unique_id);
 }
 
 bool DoesMediaDeviceIDMatchHMAC(const ResourceContext::SaltCallback& sc,
-                                const GURL& security_origin,
+                                const url::Origin& security_origin,
                                 const std::string& device_guid,
                                 const std::string& raw_unique_id) {
   return MediaStreamManager::DoesMediaDeviceIDMatchHMAC(
@@ -25,7 +25,7 @@ bool DoesMediaDeviceIDMatchHMAC(const ResourceContext::SaltCallback& sc,
 
 bool GetMediaDeviceIDForHMAC(MediaStreamType stream_type,
                              const ResourceContext::SaltCallback& rc,
-                             const GURL& security_origin,
+                             const url::Origin& security_origin,
                              const std::string& source_id,
                              std::string* device_id) {
   content::MediaStreamManager* manager =