DevTools: migrate from OwnPtr to std::unique_ptr for inspector protocol classes.

third_party/WebKit/Source/platform/v8_inspector/V8StackTraceImpl.h

 // Copyright 2016 The Chromium 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 V8StackTraceImpl_h
 #define V8StackTraceImpl_h
 
 #include "platform/inspector_protocol/Collections.h"
 #include "platform/v8_inspector/public/V8StackTrace.h"
-#include "wtf/PassOwnPtr.h"
+#include "wtf/PtrUtil.h"
 
 namespace blink {
 
 class TracedValue;
 class V8DebuggerAgentImpl;
 
 // Note: async stack trace may have empty top stack with non-empty tail to indicate
 // that current native-only state had some async story.
 // On the other hand, any non-top async stack is guaranteed to be non-empty.
 class V8StackTraceImpl final : public V8StackTrace {
     PROTOCOL_DISALLOW_COPY(V8StackTraceImpl);
 public:
     class Frame  {
     public:
         Frame();
         Frame(const String16& functionName, const String16& scriptId, const String16& scriptName, int lineNumber, int column = 0);
         ~Frame();
 
         const String16& functionName() const { return m_functionName; }
         const String16& scriptId() const { return m_scriptId; }
         const String16& sourceURL() const { return m_scriptName; }
         int lineNumber() const { return m_lineNumber; }
         int columnNumber() const { return m_columnNumber; }
 
     private:
         friend class V8StackTraceImpl;
-        PassOwnPtr<protocol::Runtime::CallFrame> buildInspectorObject() const;
+        std::unique_ptr<protocol::Runtime::CallFrame> buildInspectorObject() const;
         void toTracedValue(TracedValue*) const;
 
         String16 m_functionName;
         String16 m_scriptId;
         String16 m_scriptName;
         int m_lineNumber;
         int m_columnNumber;
     };
 
-    static PassOwnPtr<V8StackTraceImpl> create(V8DebuggerAgentImpl*, v8::Local<v8::StackTrace>, size_t maxStackSize, const String16& description = String16());
-    static PassOwnPtr<V8StackTraceImpl> capture(V8DebuggerAgentImpl*, size_t maxStackSize, const String16& description = String16());
+    static std::unique_ptr<V8StackTraceImpl> create(V8DebuggerAgentImpl*, v8::Local<v8::StackTrace>, size_t maxStackSize, const String16& description = String16());
+    static std::unique_ptr<V8StackTraceImpl> capture(V8DebuggerAgentImpl*, size_t maxStackSize, const String16& description = String16());
 
-    PassOwnPtr<V8StackTrace> clone() override;
-    PassOwnPtr<V8StackTraceImpl> cloneImpl();
-    PassOwnPtr<protocol::Runtime::StackTrace> buildInspectorObjectForTail(V8DebuggerAgentImpl*) const;
+    std::unique_ptr<V8StackTrace> clone() override;
+    std::unique_ptr<V8StackTraceImpl> cloneImpl();
+    std::unique_ptr<protocol::Runtime::StackTrace> buildInspectorObjectForTail(V8DebuggerAgentImpl*) const;
     ~V8StackTraceImpl() override;
 
     // V8StackTrace implementation.
     bool isEmpty() const override { return !m_frames.size(); };
     String16 topSourceURL() const override;
     int topLineNumber() const override;
     int topColumnNumber() const override;
     String16 topScriptId() const override;
     String16 topFunctionName() const override;
-    PassOwnPtr<protocol::Runtime::StackTrace> buildInspectorObject() const override;
+    std::unique_ptr<protocol::Runtime::StackTrace> buildInspectorObject() const override;
     String16 toString() const override;
 
 private:
-    V8StackTraceImpl(const String16& description, protocol::Vector<Frame>& frames, PassOwnPtr<V8StackTraceImpl> parent);
+    V8StackTraceImpl(const String16& description, protocol::Vector<Frame>& frames, std::unique_ptr<V8StackTraceImpl> parent);
 
     String16 m_description;
     protocol::Vector<Frame> m_frames;
-    OwnPtr<V8StackTraceImpl> m_parent;
+    std::unique_ptr<V8StackTraceImpl> m_parent;
 };
 
 } // namespace blink
 
 #endif // V8StackTraceImpl_h