Suspected fix for a tab image caching bug.

chrome/browser/ui/views/tabs/tab_controller.h

Index: chrome/browser/ui/views/tabs/tab_controller.h
diff --git a/chrome/browser/ui/views/tabs/tab_controller.h b/chrome/browser/ui/views/tabs/tab_controller.h
index fc9093f8d0d0343f3e8e52834bd15e3ebf0e39bb..8ccb0800e845eb202ee1700ea91b73935f91001a 100644
--- a/chrome/browser/ui/views/tabs/tab_controller.h
+++ b/chrome/browser/ui/views/tabs/tab_controller.h
@@ -98,7 +98,9 @@ class TabController {
   // in the same window will redraw on top of the the favicon area of any tab.
   virtual bool CanPaintThrobberToLayer() const = 0;
 
-  // Returns true if the tabs are in an incognito window.
+  // Returns true if the tabs are in an incognito window.  This is used in
+  // determining which theme may have applied to them, so this determination
+  // should match the one in ThemeService::GetThemeProviderForProfile().
   virtual bool IsIncognito() const = 0;
 
   // Returns true if tabs should be painted in the rectangular light-bar style.