Set sourceUrl property of mountpoint info for gdata to empty string if mount fails.

chrome/browser/chromeos/extensions/file_browser_event_router.cc

Index: chrome/browser/chromeos/extensions/file_browser_event_router.cc
diff --git a/chrome/browser/chromeos/extensions/file_browser_event_router.cc b/chrome/browser/chromeos/extensions/file_browser_event_router.cc
index ec1014bf303cb69f719b5c24ea8f5d9abe2485fe..35444ec786dfbbae787c6bde579cfe4f0e9a8355 100644
--- a/chrome/browser/chromeos/extensions/file_browser_event_router.cc
+++ b/chrome/browser/chromeos/extensions/file_browser_event_router.cc
@@ -370,6 +370,12 @@ void FileBrowserEventRouter::DispatchMountCompletedEvent(
             file_manager_util::GetFileBrowserExtensionUrl().GetOrigin(),
             &source_url)) {
       mount_info_value->SetString("sourceUrl", source_url.spec());
+    } else {
+      // If mounting of gdata moutn point failed, we may not be able to convert

[achuithb, 2012/03/21 19:38:29]

nit: moutn->mount

+      // source path to source url, so let just send empty string.
+      DCHECK(mount_info.mount_type == chromeos::MOUNT_TYPE_GDATA &&
+             error_code != chromeos::MOUNT_ERROR_NONE);
+      mount_info_value->SetString("sourceUrl", "");
     }
   } else {
     mount_info_value->SetString("sourceUrl", mount_info.source_path);