[DevTools] Cleanup mute exceptions, usecounter and deprecations in v8_inspector API.

third_party/WebKit/Source/core/inspector/ConsoleMessageStorage.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 ConsoleMessageStorage_h
 #define ConsoleMessageStorage_h
 
 #include "core/CoreExport.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class ConsoleMessage;
 class ExecutionContext;
 
 class CORE_EXPORT ConsoleMessageStorage : public GarbageCollected<ConsoleMessageStorage> {
     WTF_MAKE_NONCOPYABLE(ConsoleMessageStorage);
 public:
     ConsoleMessageStorage();
 
-    bool addConsoleMessage(ExecutionContext*, ConsoleMessage*);
+    void addConsoleMessage(ExecutionContext*, ConsoleMessage*);
     void clear();
-    void mute();
-    void unmute();
     size_t size() const;
     ConsoleMessage* at(size_t index) const;
     int expiredCount() const;
-    bool isMuted() const;
 
     DECLARE_TRACE();
 
 private:
     int m_expiredCount;
-    int m_mutedCount;
     HeapDeque<Member<ConsoleMessage>> m_messages;
 };
 
 } // namespace blink
 
 #endif // ConsoleMessageStorage_h