content/browser/histogram_message_filter.cc

   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 #include "content/browser/histogram_message_filter.h"
   6
   7 #include "base/process_util.h"
   8 #include "content/browser/histogram_controller.h"
   9 #include "content/browser/tcmalloc_internals_request_job.h"
  10 #include "content/common/child_process_messages.h"
  11
  12 namespace content {
  13
  14 HistogramMessageFilter::HistogramMessageFilter() {}
  15
  16 void HistogramMessageFilter::OnChannelConnected(int32 peer_pid) {
  17   BrowserMessageFilter::OnChannelConnected(peer_pid);
  18 }
  19
  20 bool HistogramMessageFilter::OnMessageReceived(const IPC::Message& message,
  21                                               bool* message_was_ok) {
  22   bool handled = true;
  23   IPC_BEGIN_MESSAGE_MAP_EX(HistogramMessageFilter, message, *message_was_ok)
  24     IPC_MESSAGE_HANDLER(ChildProcessHostMsg_ChildHistogramData,
  25                         OnChildHistogramData)
  26     IPC_MESSAGE_UNHANDLED(handled = false)
  27   IPC_END_MESSAGE_MAP_EX()
  28   return handled;
  29 }
  30
  31 HistogramMessageFilter::~HistogramMessageFilter() {}
  32
  33 void HistogramMessageFilter::OnChildHistogramData(
  34     int sequence_number,
  35     const std::vector<std::string>& pickled_histograms) {
  36   HistogramController::GetInstance()->OnHistogramDataCollected(
  37       sequence_number, pickled_histograms);
  38 }
  39 }