Implemented perpetual loading indicator widget (EXT-6596).

Simple perpetual loading indicator a la MacOS X or YouTube.
Implements spinning by changing pre-defined images.
The images are hardcoded, shared by all instances of the widget.
Number of rotations per second can be changed via params.

Reviewed by Mike at https://codereview.productengine.com/secondlife/r/320/

--HG--
branch : product-engine

1 files changed, 1 insertions, 0 deletions

diff --git a/indra/llui/lluifwd.h b/indra/llui/lluifwd.h
index f99bb39fdd..d6047b943c 100644
--- a/indra/llui/lluifwd.h
+++ b/indra/llui/lluifwd.h
@@ -39,6 +39,7 @@ class LLComboBox;
 class LLDragHandle;
 class LLFloater;
 class LLIconCtrl;
+class LLLoadingIndicator;
 class LLLineEditor;
 class LLMenuGL;
 class LLPanel;