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

content/common/media/media_stream_messages.h

Index: content/common/media/media_stream_messages.h
diff --git a/content/common/media/media_stream_messages.h b/content/common/media/media_stream_messages.h
index 46acb9b55a8e2083148cdf61c1ea81b16756ae3a..9a745a14b0369e423f0d16cbb7ac784285010c4d 100644
--- a/content/common/media/media_stream_messages.h
+++ b/content/common/media/media_stream_messages.h
@@ -11,7 +11,7 @@
 #include "content/common/media/media_stream_options.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
-#include "url/gurl.h"
+#include "url/origin.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
@@ -102,7 +102,7 @@ IPC_MESSAGE_CONTROL5(MediaStreamHostMsg_GenerateStream,
                      int /* render frame id */,
                      int /* request id */,
                      content::StreamControls /* controls */,
-                     GURL /* security origin */,
+                     url::Origin /* security origin */,
                      bool /* user_gesture */)
 
 // Request to cancel the request for a new media stream.
@@ -121,7 +121,7 @@ IPC_MESSAGE_CONTROL4(MediaStreamHostMsg_EnumerateDevices,
                      int /* render frame id */,
                      int /* request id */,
                      content::MediaStreamType /* type */,
-                     GURL /* security origin */)
+                     url::Origin /* security origin */)
 
 // Request to stop enumerating devices.
 IPC_MESSAGE_CONTROL2(MediaStreamHostMsg_CancelEnumerateDevices,
@@ -134,7 +134,7 @@ IPC_MESSAGE_CONTROL5(MediaStreamHostMsg_OpenDevice,
                      int /* request id */,
                      std::string /* device_id */,
                      content::MediaStreamType /* type */,
-                     GURL /* security origin */)
+                     url::Origin /* security origin */)
 
 // Request to close a device.
 IPC_MESSAGE_CONTROL2(MediaStreamHostMsg_CloseDevice,