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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_PROFILER_MESSAGE_FILTER_H_
      6 #define CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
      7 
      8 #include <string>
      9 
     10 #include "content/public/browser/browser_message_filter.h"
     11 
     12 namespace tracked_objects {
     13 struct ProcessDataSnapshot;
     14 }
     15 
     16 namespace content {
     17 
     18 // This class sends and receives profiler messages in the browser process.
     19 class ProfilerMessageFilter : public BrowserMessageFilter {
     20  public:
     21   explicit ProfilerMessageFilter(int process_type);
     22 
     23   // BrowserMessageFilter implementation.
     24   virtual void OnChannelConnected(int32 peer_pid) OVERRIDE;
     25 
     26   // BrowserMessageFilter implementation.
     27   virtual bool OnMessageReceived(const IPC::Message& message,
     28                                  bool* message_was_ok) OVERRIDE;
     29 
     30  protected:
     31   virtual ~ProfilerMessageFilter();
     32 
     33  private:
     34   // Message handlers.
     35   void OnChildProfilerData(
     36       int sequence_number,
     37       const tracked_objects::ProcessDataSnapshot& profiler_data);
     38 
     39 #if defined(USE_TCMALLOC)
     40   void OnTcmallocStats(const std::string& output);
     41 #endif
     42 
     43   int process_type_;
     44 
     45   DISALLOW_COPY_AND_ASSIGN(ProfilerMessageFilter);
     46 };
     47 
     48 }  // namespace content
     49 
     50 #endif  // CONTENT_BROWSER_PROFILER_MESSAGE_FILTER_H_
     51