Created uber tray UI for monitoring ongoing WebDrive sync operations

chrome/browser/chromeos/gdata/gdata_operation_registry.h

Index: chrome/browser/chromeos/gdata/gdata_operation_registry.h
diff --git a/chrome/browser/chromeos/gdata/gdata_operation_registry.h b/chrome/browser/chromeos/gdata/gdata_operation_registry.h
index 1499eedde7f971d653708cf1c10c7f9eac177268..95dc2a3cc1d2329da75674087d4c30a663fb9c02 100644
--- a/chrome/browser/chromeos/gdata/gdata_operation_registry.h
+++ b/chrome/browser/chromeos/gdata/gdata_operation_registry.h
@@ -69,12 +69,13 @@ class GDataOperationRegistry {
     // -1 if no expectation is available (yet).
     int64 progress_total;
   };
+  typedef std::vector<ProgressStatus> ProgressStatusList;
 
   // Observer interface for listening changes in the active set of operations.
   class Observer {
    public:
     // Called when a GData operation started, made some progress, or finished.
-    virtual void OnProgressUpdate(const std::vector<ProgressStatus>& list) = 0;
+    virtual void OnProgressUpdate(const ProgressStatusList& list) = 0;
    protected:
     virtual ~Observer() {}
   };
@@ -128,7 +129,7 @@ class GDataOperationRegistry {
   bool CancelForFilePath(const FilePath& file_path);
 
   // Obtains the list of currently active operations.
-  std::vector<ProgressStatus> GetProgressStatusList();
+  ProgressStatusList GetProgressStatusList();
 
   // Sets the observer.
   void AddObserver(Observer* observer);