Add different error codes for getUserMedia.

chrome/browser/media/media_stream_devices_controller.cc

Index: chrome/browser/media/media_stream_devices_controller.cc
diff --git a/chrome/browser/media/media_stream_devices_controller.cc b/chrome/browser/media/media_stream_devices_controller.cc
index 3b4e46149ddb10859cbaac0a30e028bbc49f775a..bd96d2e58794b8937e0c57c7752985b19d4a00e7 100644
--- a/chrome/browser/media/media_stream_devices_controller.cc
+++ b/chrome/browser/media/media_stream_devices_controller.cc
@@ -131,6 +131,7 @@ MediaStreamDevicesController::MediaStreamDevicesController(
 MediaStreamDevicesController::~MediaStreamDevicesController() {
   if (!callback_.is_null()) {
     callback_.Run(content::MediaStreamDevices(),
+                  content::MEDIA_DEVICE_INVALID_STATE,
                   scoped_ptr<content::MediaStreamUI>());
   }
 }
@@ -335,7 +336,7 @@ void MediaStreamDevicesController::Accept(bool update_content_setting) {
   }
   content::MediaResponseCallback cb = callback_;
   callback_.Reset();
-  cb.Run(devices, ui.Pass());
+  cb.Run(devices, content::MEDIA_DEVICE_OK, ui.Pass());
 }
 
 void MediaStreamDevicesController::Deny(bool update_content_setting) {
@@ -346,7 +347,11 @@ void MediaStreamDevicesController::Deny(bool update_content_setting) {
 
   content::MediaResponseCallback cb = callback_;
   callback_.Reset();
-  cb.Run(content::MediaStreamDevices(), scoped_ptr<content::MediaStreamUI>());
+  cb.Run(content::MediaStreamDevices(),
+         update_content_setting ?
+            content::MEDIA_DEVICE_PERMISSION_DENIED :
+            content::MEDIA_DEVICE_PERMISSION_DISMISSED,
+         scoped_ptr<content::MediaStreamUI>());
 }
 
 base::string16 MediaStreamDevicesController::GetMessageText() const {