Move PathExists to base namespace.

chrome/browser/page_cycler/page_cycler_unittest.cc

Index: chrome/browser/page_cycler/page_cycler_unittest.cc
diff --git a/chrome/browser/page_cycler/page_cycler_unittest.cc b/chrome/browser/page_cycler/page_cycler_unittest.cc
index f46bf09d73d1899b739b57f91ab9f0846870cc45..eef3eb8ce1d70e5d904dc3256c463b93f4ea5077 100644
--- a/chrome/browser/page_cycler/page_cycler_unittest.cc
+++ b/chrome/browser/page_cycler/page_cycler_unittest.cc
@@ -30,7 +30,7 @@ using content::RenderViewHost;
 using content::TestBrowserThread;
 using content::WebContentsObserver;
 using file_util::ContentsEqual;
-using file_util::PathExists;
+using base::PathExists;
 
 namespace {
 const int kFrameID = 1;
@@ -122,8 +122,8 @@ class PageCyclerTest : public BrowserWithTestWindowTest {
     errors_file_ = temp_path.AppendASCII("errors_file");
     stats_file_ = temp_path.AppendASCII("stats_file");
 
-    CHECK(!file_util::PathExists(errors_file_));
-    CHECK(!file_util::PathExists(stats_file_));
+    CHECK(!base::PathExists(errors_file_));
+    CHECK(!base::PathExists(stats_file_));
   }
 
   void FailProvisionalLoad(int error_code, string16& error_description) {