Putting the findbar into a child window.

chrome/browser/cocoa/find_bar_view.mm

Index: chrome/browser/cocoa/find_bar_view.mm
===================================================================
--- chrome/browser/cocoa/find_bar_view.mm	(revision 52179)
+++ chrome/browser/cocoa/find_bar_view.mm	(working copy)
@@ -65,6 +65,10 @@
   [path stroke];
 }
 
+- (BOOL)drawsAsKey {
+  return [[[self window] parentWindow] isKeyWindow];
+}
+
 // The findbar is mostly opaque, but has an 8px transparent border on the left
 // and right sides (see |kCurveSize|).  This is an artifact of the way it is
 // drawn.  We override hitTest to return nil for points in this transparent