Move Render(View|Widget)Host and associated classes to content namespace.

[email protected]
BUG=98716

Review URL: https://chromiumcodereview.appspot.com/9600036

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@125388 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/file_select_helper.cc b/chrome/browser/file_select_helper.cc
index 1b0b0369..5ed79eb 100644
--- a/chrome/browser/file_select_helper.cc
+++ b/chrome/browser/file_select_helper.cc
@@ -27,6 +27,8 @@
 #include "ui/base/l10n/l10n_util.h"
 
 using content::BrowserThread;
+using content::RenderViewHost;
+using content::RenderWidgetHost;
 using content::WebContents;
 
 namespace {