DevTools: introduce protocol::Value, baseline for hierarchical data in remote debugging protocol.

third_party/WebKit/Source/platform/v8_inspector/public/V8Debugger.h

 // Copyright 2015 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 V8Debugger_h
 #define V8Debugger_h
 
 #include "platform/PlatformExport.h"
 #include "platform/inspector_protocol/Frontend.h"
 #include "wtf/Forward.h"
 #include "wtf/PassOwnPtr.h"
 
 #include <v8.h>
 
 namespace blink {
 
-class JSONObject;
 class V8DebuggerClient;
 class V8StackTrace;
 
+namespace protocol {
+class DictionaryValue;
+}
+
 class PLATFORM_EXPORT V8Debugger {
     USING_FAST_MALLOC(V8Debugger);
 public:
     template <typename T>
     class Agent {
     public:
-        virtual void setInspectorState(PassRefPtr<JSONObject>) = 0;
+        virtual void setInspectorState(PassRefPtr<protocol::DictionaryValue>) = 0;
         virtual void setFrontend(T*) = 0;
         virtual void clearFrontend() = 0;
         virtual void restore() = 0;
     };
 
     static PassOwnPtr<V8Debugger> create(v8::Isolate*, V8DebuggerClient*);
     virtual ~V8Debugger() { }
 
     // Each v8::Context is a part of a group. The group id is used to find approapriate
     // V8DebuggerAgent to notify about events in the context.
     // |contextGroupId| must be non-0.
     static void setContextDebugData(v8::Local<v8::Context>, const String& type, int contextGroupId);
     static int contextId(v8::Local<v8::Context>);
 
     static v8::Local<v8::Symbol> commandLineAPISymbol(v8::Isolate*);
     static bool isCommandLineAPIMethod(const AtomicString& name);
 
     virtual PassOwnPtr<V8StackTrace> createStackTrace(v8::Local<v8::StackTrace>, size_t maxStackSize) = 0;
     virtual PassOwnPtr<V8StackTrace> captureStackTrace(size_t maxStackSize) = 0;
 };
 
 } // namespace blink
 
 
 #endif // V8Debugger_h