Move tracing code in content\browser to content\browser\tracing now that there's a separate directo…

content/browser/trace_message_filter.cc

Index: content/browser/trace_message_filter.cc
===================================================================
--- content/browser/trace_message_filter.cc	(revision 180062)
+++ content/browser/trace_message_filter.cc	(working copy)
@@ -1,128 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "content/browser/trace_message_filter.h"
-
-#include "components/tracing/tracing_messages.h"
-#include "content/browser/trace_controller_impl.h"
-
-namespace content {
-
-TraceMessageFilter::TraceMessageFilter() :
-    has_child_(false),
-    is_awaiting_end_ack_(false),
-    is_awaiting_buffer_percent_full_ack_(false) {
-}
-
-void TraceMessageFilter::OnFilterAdded(IPC::Channel* channel) {
-  // Always on IO thread (BrowserMessageFilter guarantee).
-  BrowserMessageFilter::OnFilterAdded(channel);
-}
-
-void TraceMessageFilter::OnChannelClosing() {
-  // Always on IO thread (BrowserMessageFilter guarantee).
-  BrowserMessageFilter::OnChannelClosing();
-
-  if (has_child_) {
-    if (is_awaiting_end_ack_)
-      OnEndTracingAck(std::vector<std::string>());
-
-    if (is_awaiting_buffer_percent_full_ack_)
-      OnTraceBufferPercentFullReply(0.0f);
-
-    TraceControllerImpl::GetInstance()->RemoveFilter(this);
-  }
-}
-
-bool TraceMessageFilter::OnMessageReceived(const IPC::Message& message,
-                                           bool* message_was_ok) {
-  // Always on IO thread (BrowserMessageFilter guarantee).
-  bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(TraceMessageFilter, message, *message_was_ok)
-    IPC_MESSAGE_HANDLER(TracingHostMsg_ChildSupportsTracing,
-                        OnChildSupportsTracing)
-    IPC_MESSAGE_HANDLER(TracingHostMsg_EndTracingAck, OnEndTracingAck)
-    IPC_MESSAGE_HANDLER(TracingHostMsg_TraceDataCollected,
-                        OnTraceDataCollected)
-    IPC_MESSAGE_HANDLER(TracingHostMsg_TraceNotification,
-                        OnTraceNotification)
-    IPC_MESSAGE_HANDLER(TracingHostMsg_TraceBufferPercentFullReply,
-                        OnTraceBufferPercentFullReply)
-    IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
-  return handled;
-}
-
-void TraceMessageFilter::SendBeginTracing(
-    const std::vector<std::string>& included_categories,
-    const std::vector<std::string>& excluded_categories) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  Send(new TracingMsg_BeginTracing(included_categories,
-                                   excluded_categories,
-                                   base::TimeTicks::NowFromSystemTraceTime()));
-}
-
-void TraceMessageFilter::SendEndTracing() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(!is_awaiting_end_ack_);
-  is_awaiting_end_ack_ = true;
-  Send(new TracingMsg_EndTracing);
-}
-
-void TraceMessageFilter::SendGetTraceBufferPercentFull() {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
-  DCHECK(!is_awaiting_buffer_percent_full_ack_);
-  is_awaiting_buffer_percent_full_ack_ = true;
-  Send(new TracingMsg_GetTraceBufferPercentFull);
-}
-
-void TraceMessageFilter::SendSetWatchEvent(const std::string& category_name,
-                                           const std::string& event_name) {
-  Send(new TracingMsg_SetWatchEvent(category_name, event_name));
-}
-
-void TraceMessageFilter::SendCancelWatchEvent() {
-  Send(new TracingMsg_CancelWatchEvent);
-}
-
-TraceMessageFilter::~TraceMessageFilter() {}
-
-void TraceMessageFilter::OnChildSupportsTracing() {
-  has_child_ = true;
-  TraceControllerImpl::GetInstance()->AddFilter(this);
-}
-
-void TraceMessageFilter::OnEndTracingAck(
-    const std::vector<std::string>& known_categories) {
-  // is_awaiting_end_ack_ should always be true here, but check in case the
-  // child process is compromised.
-  if (is_awaiting_end_ack_) {
-    is_awaiting_end_ack_ = false;
-    TraceControllerImpl::GetInstance()->OnEndTracingAck(known_categories);
-  } else {
-    NOTREACHED();
-  }
-}
-
-void TraceMessageFilter::OnTraceDataCollected(const std::string& data) {
-  scoped_refptr<base::RefCountedString> data_ptr(new base::RefCountedString());
-  data_ptr->data() = data;
-  TraceControllerImpl::GetInstance()->OnTraceDataCollected(data_ptr);
-}
-
-void TraceMessageFilter::OnTraceNotification(int notification) {
-  TraceControllerImpl::GetInstance()->OnTraceNotification(notification);
-}
-
-void TraceMessageFilter::OnTraceBufferPercentFullReply(float percent_full) {
-  if (is_awaiting_buffer_percent_full_ack_) {
-    is_awaiting_buffer_percent_full_ack_ = false;
-    TraceControllerImpl::GetInstance()->OnTraceBufferPercentFullReply(
-        percent_full);
-  } else {
-    NOTREACHED();
-  }
-}
-
-}  // namespace content