Remove FileError interface

third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h

Index: third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h
diff --git a/third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h b/third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h
index 534242f48ed259591d428219faff734fd5873778..30ede5e6555d841a5ed7a7309ae40194fa8f1c4f 100644
--- a/third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h
+++ b/third_party/WebKit/Source/modules/filesystem/SyncCallbackHelper.h
@@ -119,10 +119,14 @@ private:
             return new ErrorCallbackImpl(helper);
         }
 
-        void handleEvent(FileError* error) override
+        void handleEvent(DOMException* error) override
         {
-            ASSERT(error);
-            m_helper->setError(error->code());
+            NOTREACHED();
+        }
+
+        void handleEvent(FileError::ErrorCode error) override
+        {
+            m_helper->setError(error);
         }
 
         DEFINE_INLINE_TRACE()
@@ -139,9 +143,9 @@ private:
         Member<HelperType> m_helper;
     };
 
-    void setError(FileError::ErrorCode code)
+    void setError(FileError::ErrorCode error)
     {
-        m_errorCode = code;
+        m_errorCode = error;
         m_completed = true;
     }