WIP: Introduce CompressibleString

third_party/WebKit/Source/bindings/core/v8/V8PerIsolateData.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
 #define V8PerIsolateData_h
 
 #include "bindings/core/v8/ScopedPersistent.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8HiddenValue.h"
 #include "bindings/core/v8/WrapperTypeInfo.h"
 #include "core/CoreExport.h"
 #include "core/inspector/ScriptDebuggerBase.h"
 #include "gin/public/isolate_holder.h"
 #include "gin/public/v8_idle_task_runner.h"
+#include "platform/text/CompressableString.h"
 #include "wtf/HashMap.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/Vector.h"
 #include <v8.h>
 
 namespace blink {
 
 class DOMDataStore;
 class StringCache;
@@ skipping 73 matching lines @@
     // EndOfScopeTasks are run by V8RecursionScope when control is returning
     // to C++ from script, after executing a script task (e.g. callback,
     // event) or microtasks (e.g. promise). This is explicitly needed for
     // Indexed DB transactions per spec, but should in general be avoided.
     void addEndOfScopeTask(PassOwnPtr<EndOfScopeTask>);
     void runEndOfScopeTasks();
     void clearEndOfScopeTasks();
 
     void setScriptDebugger(PassOwnPtr<ScriptDebuggerBase>);
 
+    void addCompressableString(const CompressableString&);
+
+    void compressStrings();
+
 private:
     V8PerIsolateData();
     ~V8PerIsolateData();
 
     typedef HashMap<const void*, v8::Eternal<v8::FunctionTemplate>> DOMTemplateMap;
     DOMTemplateMap& currentDOMTemplateMap();
     bool hasInstance(const WrapperTypeInfo* untrusted, v8::Local<v8::Value>, DOMTemplateMap&);
     v8::Local<v8::Object> findInstanceInPrototypeChain(const WrapperTypeInfo*, v8::Local<v8::Value>, DOMTemplateMap&);
 
     bool m_destructionPending;
@@ skipping 15 matching lines @@
     bool m_isHandlingRecursionLevelError;
     bool m_isReportingException;
 
 #if ENABLE(ASSERT)
     int m_internalScriptRecursionLevel;
 #endif
     bool m_performingMicrotaskCheckpoint;
 
     Vector<OwnPtr<EndOfScopeTask>> m_endOfScopeTasks;
     OwnPtr<ScriptDebuggerBase> m_scriptDebugger;
+
+    HashSet<RefPtr<CompressableStringImpl>> m_compressableStrings;
 };
 
 } // namespace blink
 
 #endif // V8PerIsolateData_h