Replace SmartPointer<T> with unique_ptr<T>

src/compiler/wasm-compiler.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_WASM_COMPILER_H_
 #define V8_COMPILER_WASM_COMPILER_H_
 
+#include <memory>
+
 // Clients of this interface shouldn't depend on lots of compiler internals.
 // Do not include anything from src/compiler here!
 #include "src/compiler.h"
 #include "src/wasm/wasm-opcodes.h"
 #include "src/wasm/wasm-result.h"
 #include "src/zone.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 42 matching lines @@
   }
 
  private:
   SourcePositionTable* BuildGraphForWasmFunction(double* decode_ms);
 
   wasm::ErrorThrower* thrower_;
   Isolate* isolate_;
   wasm::ModuleEnv* module_env_;
   const wasm::WasmFunction* function_;
   // The graph zone is deallocated at the end of ExecuteCompilation.
-  base::SmartPointer<Zone> graph_zone_;
+  std::unique_ptr<Zone> graph_zone_;
   JSGraph* jsgraph_;
   Zone compilation_zone_;
   CompilationInfo info_;
-  base::SmartPointer<CompilationJob> job_;
+  std::unique_ptr<CompilationJob> job_;
   uint32_t index_;
   wasm::Result<wasm::DecodeStruct*> graph_construction_result_;
   bool ok_;
+
+  DISALLOW_COPY_AND_ASSIGN(WasmCompilationUnit);
 };
 
 // Wraps a JS function, producing a code object that can be called from WASM.
 Handle<Code> CompileWasmToJSWrapper(Isolate* isolate,
                                     Handle<JSFunction> function,
                                     wasm::FunctionSig* sig, uint32_t index,
                                     Handle<String> import_module,
                                     MaybeHandle<String> import_function);
 
 // Wraps a given wasm code object, producing a code object.
@@ skipping 275 matching lines @@
   }
 
   // Simd helper functions
   MachineOperatorBuilder* simd();
 };
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_WASM_COMPILER_H_