chromeos: Move removable media path constant to header.

chrome/browser/chromeos/file_manager/path_util.h

Index: chrome/browser/chromeos/file_manager/path_util.h
diff --git a/chrome/browser/chromeos/file_manager/path_util.h b/chrome/browser/chromeos/file_manager/path_util.h
index 6221f9bd9a843f0e925a186b10778a22b9bceb09..412f2a8a9f56c867222127206e599649c12d920d 100644
--- a/chrome/browser/chromeos/file_manager/path_util.h
+++ b/chrome/browser/chromeos/file_manager/path_util.h
@@ -7,16 +7,18 @@
 
 #include <string>
 
+#include "base/files/file_path.h"
+
 class GURL;
 class Profile;
 
-namespace base {
-class FilePath;
-}
-
 namespace file_manager {
 namespace util {
 
+// Absolute base path for removable media on Chrome OS. Exposed here so it can
+// be used by tests.
+extern const base::FilePath::CharType kRemovableMediaPath[];
+
 // Gets the absolute path for the 'Downloads' folder for the |profile|.
 base::FilePath GetDownloadsFolderForProfile(Profile* profile);