Order the GL overlays above windows if possible.

chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm

Index: chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
diff --git a/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm b/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
index 269f0930aca3f59f7dfcd65dd11fe99fa19c9025..d4a7f3f6b0d55f154fcd43b26c81da6894baabef 100644
--- a/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
+++ b/chrome/browser/ui/cocoa/tab_contents/tab_contents_controller.mm
@@ -10,6 +10,7 @@
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_contents_view.h"
 
 using content::WebContents;
 
@@ -60,6 +61,9 @@ using content::WebContents;
   }
   [contentsNativeView setAutoresizingMask:NSViewWidthSizable|
                                           NSViewHeightSizable];
+  // The find bar will overlap the content's view when it comes out; inform
+  // the view.
+  contents_->GetView()->SetAllowOverlappingViews(true);
 }
 
 - (void)changeWebContents:(WebContents*)newContents {