This is an alternate CL to the fix in http://codereview.chromium.org/5553002.

chrome/browser/ui/find_bar/find_bar_controller.cc

Index: chrome/browser/ui/find_bar/find_bar_controller.cc
diff --git a/chrome/browser/ui/find_bar/find_bar_controller.cc b/chrome/browser/ui/find_bar/find_bar_controller.cc
index 4f637e8b9af386da623e79895c4a4f6c608a7559..c0c2162e342e06b9b6707537669ec85c1a55b887 100644
--- a/chrome/browser/ui/find_bar/find_bar_controller.cc
+++ b/chrome/browser/ui/find_bar/find_bar_controller.cc
@@ -92,6 +92,7 @@ void FindBarController::ChangeTabContents(TabContents* contents) {
     // we don't surprise the user by popping up to the left for no apparent
     // reason.
     find_bar_->Show(false);
+    find_bar_->SetFocusAndSelection();
   }
 
   UpdateFindBarForCurrentResult();