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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
      6 #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
      7 
      8 #include "base/debug/trace_event.h"
      9 #include "content/browser/devtools/devtools_protocol.h"
     10 #include "content/public/browser/trace_subscriber.h"
     11 
     12 namespace content {
     13 
     14 // This class bridges DevTools remote debugging server with the trace
     15 // infrastructure.
     16 class DevToolsTracingHandler
     17     : public TraceSubscriber,
     18       public DevToolsProtocol::Handler {
     19  public:
     20   DevToolsTracingHandler();
     21   virtual ~DevToolsTracingHandler();
     22 
     23   // TraceSubscriber:
     24   virtual void OnEndTracingComplete() OVERRIDE;;
     25   virtual void OnTraceDataCollected(
     26       const scoped_refptr<base::RefCountedString>& trace_fragment) OVERRIDE;
     27 
     28  private:
     29   scoped_refptr<DevToolsProtocol::Response> OnStart(
     30       scoped_refptr<DevToolsProtocol::Command> command);
     31   scoped_refptr<DevToolsProtocol::Response> OnEnd(
     32       scoped_refptr<DevToolsProtocol::Command> command);
     33 
     34   base::debug::TraceLog::Options TraceOptionsFromString(
     35       const std::string& options);
     36 
     37   bool is_running_;
     38 
     39   DISALLOW_COPY_AND_ASSIGN(DevToolsTracingHandler);
     40 };
     41 
     42 }  // namespace content
     43 
     44 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
     45