Replacing base::DIR_TEMP with ScopedTempDir when appropriate.

chrome/browser/extensions/extension_browsertest.h

Index: chrome/browser/extensions/extension_browsertest.h
diff --git a/chrome/browser/extensions/extension_browsertest.h b/chrome/browser/extensions/extension_browsertest.h
index 22fb6c649fcad1e5a9326f7ac5112a2c12129f5d..2fda271d140d59c363b087a324151c93ec68f71d 100644
--- a/chrome/browser/extensions/extension_browsertest.h
+++ b/chrome/browser/extensions/extension_browsertest.h
@@ -10,6 +10,7 @@
 
 #include "base/command_line.h"
 #include "base/file_path.h"
+#include "base/memory/scoped_temp_dir.h"
 #include "chrome/test/in_process_browser_test.h"
 #include "content/common/notification_details.h"
 #include "content/common/notification_observer.h"
@@ -122,6 +123,9 @@ class ExtensionBrowserTest
   int extension_installs_observed_;
 
  private:
+  // Temporary directory for testing.
+  ScopedTempDir temp_dir_;
+
   // Specifies the type of UI (if any) to show during installation and what
   // user action to simulate.
   enum InstallUIType {