Fix classes that have too many virtuals for inline constructors.

content/public/browser/tracing_controller.h

 // Copyright 2013 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 CONTENT_PUBLIC_BROWSER_TRACING_CONTROLLER_H_
 #define CONTENT_PUBLIC_BROWSER_TRACING_CONTROLLER_H_
 
 #include <set>
 #include <string>
 
 #include "base/callback.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/trace_event/trace_event.h"
 #include "base/values.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 class TracingController;
 
 // TracingController is used on the browser processes to enable/disable
@@ skipping 24 matching lines @@
     virtual void AddMetadata(const base::DictionaryValue& data);
     virtual const base::DictionaryValue& GetMetadata() const;
     // TODO(prabhur) Replace all the Set* functions with a generic function:
     // TraceDataSink::AppendAdditionalData(const std::string& name,
     // const std::string& trace_data)
     virtual void SetPowerTrace(const std::string& data) {}
     virtual void Close() {}
 
    protected:
     friend class base::RefCountedThreadSafe<TraceDataSink>;
+    TraceDataSink() = default;
     virtual ~TraceDataSink() {}
 
    private:
     base::DictionaryValue metadata_;
+
+    DISALLOW_COPY_AND_ASSIGN(TraceDataSink);
   };
 
   // An implementation of this interface is passed when constructing a
   // TraceDataSink, and receives chunks of the final trace data as it's being
   // constructed.
   // Methods may be called from any thread.
   class CONTENT_EXPORT TraceDataEndpoint
       : public base::RefCountedThreadSafe<TraceDataEndpoint> {
    public:
     virtual void ReceiveTraceChunk(const std::string& chunk) {}
@@ skipping 155 matching lines @@
   // Check if the tracing system is tracing
   virtual bool IsTracing() const = 0;
 
  protected:
   virtual ~TracingController() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_TRACING_CONTROLLER_H_