Move src/backend to src/dawn_native

src/dawn_native/ErrorData.h

@@ -0,0 +1,45 @@
+// Copyright 2018 The Dawn Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef BACKEND_ERRORDATA_H_
+#define BACKEND_ERRORDATA_H_
+
+#include <string>
+#include <vector>
+
+namespace backend {
+
+    class ErrorData {
+      public:
+        ErrorData();
+        ErrorData(std::string message);
+
+        struct BacktraceRecord {
+            const char* file;
+            const char* function;
+            int line;
+        };
+        void AppendBacktrace(const char* file, const char* function, int line);
+
+        const std::string& GetMessage() const;
+        const std::vector<BacktraceRecord>& GetBacktrace() const;
+
+      private:
+        std::string mMessage;
+        std::vector<BacktraceRecord> mBacktrace;
+    };
+
+}  // namespace backend
+
+#endif  // BACKEND_ERRORDATA_H_