Move the check for fileBrowserHandler permission to FileBrowserHandler.

chrome/browser/extensions/mock_extension_special_storage_policy.cc

Index: chrome/browser/extensions/mock_extension_special_storage_policy.cc
diff --git a/chrome/browser/extensions/mock_extension_special_storage_policy.cc b/chrome/browser/extensions/mock_extension_special_storage_policy.cc
index edea80d38e3ff51adad686a8e754c4a2364597db..d4d609bf34216433727acdb3bf02ab926043bfc2 100644
--- a/chrome/browser/extensions/mock_extension_special_storage_policy.cc
+++ b/chrome/browser/extensions/mock_extension_special_storage_policy.cc
@@ -24,11 +24,6 @@ bool MockExtensionSpecialStoragePolicy::CanQueryDiskSize(const GURL& origin) {
   return false;
 }
 
-bool MockExtensionSpecialStoragePolicy::IsFileHandler(
-    const std::string& extension_id) {
-  return false;
-}
-
 bool MockExtensionSpecialStoragePolicy::HasSessionOnlyOrigins() {
   return false;
 }