Add mechanism to auto mount file systems in response to a URL request.

content/public/test/test_file_system_context.h

Index: content/public/test/test_file_system_context.h
diff --git a/content/public/test/test_file_system_context.h b/content/public/test/test_file_system_context.h
index 19a4fc4376f3de28c3a9cbc5e22807246c087d30..8b7c872b87e7999f41028365fa4c2be0fda58670 100644
--- a/content/public/test/test_file_system_context.h
+++ b/content/public/test/test_file_system_context.h
@@ -7,6 +7,7 @@
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_vector.h"
+#include "webkit/browser/fileapi/file_system_context.h"
 
 namespace quota {
 class QuotaManagerProxy;
@@ -14,7 +15,6 @@ class SpecialStoragePolicy;
 }
 
 namespace fileapi {
-class FileSystemContext;
 class FileSystemBackend;
 }
 
@@ -32,6 +32,13 @@ CreateFileSystemContextWithAdditionalProvidersForTesting(
     ScopedVector<fileapi::FileSystemBackend> additional_providers,
     const base::FilePath& base_path);
 
+fileapi::FileSystemContext*
+CreateFileSystemContextWithAutoMountersForTesting(
+    quota::QuotaManagerProxy* quota_manager_proxy,
+    ScopedVector<fileapi::FileSystemBackend> additional_providers,
+    const std::vector<fileapi::URLRequestAutoMountHandler>& auto_mounters,
+    const base::FilePath& base_path);
+
 fileapi::FileSystemContext* CreateIncognitoFileSystemContextForTesting(
     quota::QuotaManagerProxy* quota_manager_proxy,
     const base::FilePath& base_path);