Move in_process_browser_test and ui_test_utils to chrome/test/base

chrome/browser/tab_contents/thumbnail_generator.cc

Index: chrome/browser/tab_contents/thumbnail_generator.cc
===================================================================
--- chrome/browser/tab_contents/thumbnail_generator.cc	(revision 94694)
+++ chrome/browser/tab_contents/thumbnail_generator.cc	(working copy)
@@ -354,7 +354,7 @@
 void ThumbnailGenerator::WidgetHidden(RenderWidgetHost* widget) {
   // tab_contents_ can be NULL, if StartThumbnailing() is not called, but
   // MonitorRenderer() is called. The use case is found in
-  // chrome/test/ui_test_utils.cc.
+  // chrome/test/base/ui_test_utils.cc.
   if (!tab_contents())
     return;
   UpdateThumbnailIfNecessary(tab_contents());