A number of paint optimizations to improve overall paint times.

chrome/browser/ui/views/status_bubble_views.cc

Index: chrome/browser/ui/views/status_bubble_views.cc
diff --git a/chrome/browser/ui/views/status_bubble_views.cc b/chrome/browser/ui/views/status_bubble_views.cc
index 303a362acb74711d33e9a2caee73225d06c95cbf..42ed4d53708d7a86fa6fdede643895534e8045f6 100644
--- a/chrome/browser/ui/views/status_bubble_views.cc
+++ b/chrome/browser/ui/views/status_bubble_views.cc
@@ -192,12 +192,13 @@ void StatusBubbleViews::StatusView::SetText(const string16& text,
     StartHiding();
   } else {
     // We want to show the string.
-    text_ = text;
+    if (text != text_) {
+      text_ = text;
+      SchedulePaint();
+    }
     if (should_animate_open)
       StartShowing();
   }
-
-  SchedulePaint();
 }
 
 void StatusBubbleViews::StatusView::Show() {