Applied review comments from oshima for CL 7850026.

chrome/browser/screensaver_window_finder_gtk.cc

Index: chrome/browser/screensaver_window_finder_gtk.cc
diff --git a/chrome/browser/screensaver_window_finder_linux.cc b/chrome/browser/screensaver_window_finder_gtk.cc
similarity index 92%
rename from chrome/browser/screensaver_window_finder_linux.cc
rename to chrome/browser/screensaver_window_finder_gtk.cc
index e43b2d85e2513e51dc57447af1361ac64ecb8720..a94f3230e63eb462fccfbe65a1a6061411b10f38 100644
--- a/chrome/browser/screensaver_window_finder_linux.cc
+++ b/chrome/browser/screensaver_window_finder_gtk.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/screensaver_window_finder_linux.h"
+#include "chrome/browser/screensaver_window_finder_gtk.h"
 
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
@@ -17,15 +17,11 @@ ScreensaverWindowFinder::ScreensaverWindowFinder()
 }
 
 bool ScreensaverWindowFinder::ScreensaverWindowExists() {
-#if defined(USE_AURA)
-  return false;
-#else
   gdk_error_trap_push();
   ScreensaverWindowFinder finder;
   gtk_util::EnumerateTopLevelWindows(&finder);
   bool got_error = gdk_error_trap_pop();
   return finder.exists_ && !got_error;
-#endif
 }
 
 bool ScreensaverWindowFinder::ShouldStopIterating(XID window) {