Move the check for fileBrowserHandler permission to FileBrowserHandler.

content/public/test/mock_special_storage_policy.h

Index: content/public/test/mock_special_storage_policy.h
diff --git a/content/public/test/mock_special_storage_policy.h b/content/public/test/mock_special_storage_policy.h
index 2d7ce62fd7db267ac93cfd7440aed4032ab411d5..1220f6543e4359c8ff8d9f2c7305fa0a56faf3b7 100644
--- a/content/public/test/mock_special_storage_policy.h
+++ b/content/public/test/mock_special_storage_policy.h
@@ -23,7 +23,6 @@ class MockSpecialStoragePolicy : public storage::SpecialStoragePolicy {
   bool IsStorageUnlimited(const GURL& origin) override;
   bool IsStorageSessionOnly(const GURL& origin) override;
   bool CanQueryDiskSize(const GURL& origin) override;
-  bool IsFileHandler(const std::string& extension_id) override;
   bool HasIsolatedStorage(const GURL& origin) override;
   bool HasSessionOnlyOrigins() override;
 
@@ -47,10 +46,6 @@ class MockSpecialStoragePolicy : public storage::SpecialStoragePolicy {
     can_query_disk_size_.insert(origin);
   }
 
-  void AddFileHandler(const std::string& id) {
-    file_handlers_.insert(id);
-  }
-
   void AddIsolated(const GURL& origin) {
     isolated_.insert(origin);
   }