Synchronously update the loading state when a load starts so that the UI will...

chrome/browser/renderer_host/render_view_host_delegate.h

Index: chrome/browser/renderer_host/render_view_host_delegate.h
===================================================================
--- chrome/browser/renderer_host/render_view_host_delegate.h	(revision 14707)
+++ chrome/browser/renderer_host/render_view_host_delegate.h	(working copy)
@@ -198,13 +198,13 @@
   // The page is trying to move the RenderView's representation in the client.
   virtual void RequestMove(const gfx::Rect& new_bounds) { }
 
-  // The RenderView began loading a new page.
-  virtual void DidStartLoading(RenderViewHost* render_view_host,
-                               int32 page_id) { }
+  // The RenderView began loading a new page. This corresponds to WebKit's
+  // notion of the throbber starting.
+  virtual void DidStartLoading(RenderViewHost* render_view_host) { }
 
-  // The RenderView stopped loading a page.
-  virtual void DidStopLoading(RenderViewHost* render_view_host,
-                              int32 page_id) { }
+  // The RenderView stopped loading a page. This corresponds to WebKit's
+  // notion of the throbber stopping.
+  virtual void DidStopLoading(RenderViewHost* render_view_host) { }
 
   // The RenderView is starting a provisional load.
   virtual void DidStartProvisionalLoadForFrame(RenderViewHost* render_view_host,