Add RetainedRef uses where needed.

content/browser/tracing/tracing_controller_impl.cc

 // Copyright (c) 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.
 #include "content/browser/tracing/tracing_controller_impl.h"
 
 #include "base/bind.h"
 #include "base/cpu.h"
 #include "base/files/file_util.h"
 #include "base/guid.h"
 #include "base/json/string_escape.h"
@@ skipping 394 matching lines @@
   approximate_event_count_ = 0;
 
   base::trace_event::TraceLogStatus status =
       TraceLog::GetInstance()->GetStatus();
   // Call OnTraceLogStatusReply unconditionally for the browser process.
   // This will result in immediate execution of the callback if there are no
   // child processes.
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       base::Bind(&TracingControllerImpl::OnTraceLogStatusReply,
-                 base::Unretained(this), scoped_refptr<TraceMessageFilter>(),
-                 status));
+                 base::Unretained(this), nullptr, status));
 
   // Notify all child processes.
   for (TraceMessageFilterSet::iterator it = trace_message_filters_.begin();
       it != trace_message_filters_.end(); ++it) {
     it->get()->SendGetTraceLogStatus();
   }
   return true;
 }
 
 bool TracingControllerImpl::SetWatchEvent(
@@ skipping 36 matching lines @@
   return true;
 }
 
 bool TracingControllerImpl::IsTracing() const {
   return is_tracing_;
 }
 
 void TracingControllerImpl::AddTraceMessageFilter(
     TraceMessageFilter* trace_message_filter) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
-    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
         base::Bind(&TracingControllerImpl::AddTraceMessageFilter,
                    base::Unretained(this),
-                   make_scoped_refptr(trace_message_filter)));
+                   base::RetainedRef(trace_message_filter)));
     return;
   }
 
 #if defined(OS_LINUX)
   // On Linux the browser process dumps process metrics for child process due to
   // sandbox.
   tracing::ProcessMetricsMemoryDumpProvider::RegisterForProcess(
       trace_message_filter->peer_pid());
 #endif
 
   trace_message_filters_.insert(trace_message_filter);
   if (can_cancel_watch_event()) {
     trace_message_filter->SendSetWatchEvent(watch_category_name_,
                                             watch_event_name_);
   }
   if (can_stop_tracing()) {
     trace_message_filter->SendBeginTracing(
         TraceLog::GetInstance()->GetCurrentTraceConfig());
   }
 
   FOR_EACH_OBSERVER(TraceMessageFilterObserver, trace_message_filter_observers_,
                     OnTraceMessageFilterAdded(trace_message_filter));
 }
 
 void TracingControllerImpl::RemoveTraceMessageFilter(
     TraceMessageFilter* trace_message_filter) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
-    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
         base::Bind(&TracingControllerImpl::RemoveTraceMessageFilter,
                    base::Unretained(this),
-                   make_scoped_refptr(trace_message_filter)));
+                   base::RetainedRef(trace_message_filter)));
     return;
   }
 
 #if defined(OS_LINUX)
   tracing::ProcessMetricsMemoryDumpProvider::UnregisterForProcess(
       trace_message_filter->peer_pid());
 #endif
 
   // If a filter is removed while a response from that filter is pending then
   // simulate the response. Otherwise the response count will be wrong and the
   // completion callback will never be executed.
   if (pending_stop_tracing_ack_count_ > 0) {
     TraceMessageFilterSet::const_iterator it =
         pending_stop_tracing_filters_.find(trace_message_filter);
     if (it != pending_stop_tracing_filters_.end()) {
-      BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
+      BrowserThread::PostTask(
+          BrowserThread::UI, FROM_HERE,
           base::Bind(&TracingControllerImpl::OnStopTracingAcked,
                      base::Unretained(this),
-                     make_scoped_refptr(trace_message_filter),
+                     base::RetainedRef(trace_message_filter),
                      std::vector<std::string>()));
     }
   }
   if (pending_trace_log_status_ack_count_ > 0) {
     TraceMessageFilterSet::const_iterator it =
         pending_trace_log_status_filters_.find(trace_message_filter);
     if (it != pending_trace_log_status_filters_.end()) {
       BrowserThread::PostTask(
           BrowserThread::UI, FROM_HERE,
           base::Bind(&TracingControllerImpl::OnTraceLogStatusReply,
                      base::Unretained(this),
-                     make_scoped_refptr(trace_message_filter),
+                     base::RetainedRef(trace_message_filter),
                      base::trace_event::TraceLogStatus()));
     }
   }
   if (pending_memory_dump_ack_count_ > 0) {
     TraceMessageFilterSet::const_iterator it =
         pending_memory_dump_filters_.find(trace_message_filter);
     if (it != pending_memory_dump_filters_.end()) {
       BrowserThread::PostTask(
           BrowserThread::UI, FROM_HERE,
           base::Bind(&TracingControllerImpl::OnProcessMemoryDumpResponse,
                      base::Unretained(this),
-                     make_scoped_refptr(trace_message_filter),
+                     base::RetainedRef(trace_message_filter),
                      pending_memory_dump_guid_, false /* success */));
     }
   }
   trace_message_filters_.erase(trace_message_filter);
 }
 
 void TracingControllerImpl::AddTracingAgent(const std::string& agent_name) {
 #if defined(OS_CHROMEOS)
   auto debug_daemon =
       chromeos::DBusThreadManager::Get()->GetDebugDaemonClient();
@@ skipping 37 matching lines @@
   if (--pending_start_tracing_ack_count_ == 0) {
     start_tracing_timer_.Stop();
     OnAllTracingAgentsStarted();
   }
 }
 
 void TracingControllerImpl::OnStopTracingAcked(
     TraceMessageFilter* trace_message_filter,
     const std::vector<std::string>& known_category_groups) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
-    BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
-        base::Bind(&TracingControllerImpl::OnStopTracingAcked,
-                   base::Unretained(this),
-                   make_scoped_refptr(trace_message_filter),
-                   known_category_groups));
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
+        base::Bind(
+            &TracingControllerImpl::OnStopTracingAcked, base::Unretained(this),
+            base::RetainedRef(trace_message_filter), known_category_groups));
     return;
   }
 
   // Merge known_category_groups with known_category_groups_
   known_category_groups_.insert(known_category_groups.begin(),
                                 known_category_groups.end());
 
   if (pending_stop_tracing_ack_count_ == 0)
     return;
 
@@ skipping 90 matching lines @@
 }
 
 void TracingControllerImpl::OnTraceLogStatusReply(
     TraceMessageFilter* trace_message_filter,
     const base::trace_event::TraceLogStatus& status) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&TracingControllerImpl::OnTraceLogStatusReply,
                    base::Unretained(this),
-                   make_scoped_refptr(trace_message_filter), status));
+                   base::RetainedRef(trace_message_filter), status));
     return;
   }
 
   if (pending_trace_log_status_ack_count_ == 0)
     return;
 
   if (trace_message_filter &&
       !pending_trace_log_status_filters_.erase(trace_message_filter)) {
     // The response from the specified message filter has already been received.
     return;
@@ skipping 220 matching lines @@
 
 void TracingControllerImpl::OnProcessMemoryDumpResponse(
     TraceMessageFilter* trace_message_filter,
     uint64_t dump_guid,
     bool success) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
     BrowserThread::PostTask(
         BrowserThread::UI, FROM_HERE,
         base::Bind(&TracingControllerImpl::OnProcessMemoryDumpResponse,
                    base::Unretained(this),
-                   make_scoped_refptr(trace_message_filter), dump_guid,
+                   base::RetainedRef(trace_message_filter), dump_guid,
                    success));
     return;
   }
 
   TraceMessageFilterSet::iterator it =
       pending_memory_dump_filters_.find(trace_message_filter);
 
   if (pending_memory_dump_guid_ != dump_guid ||
       it == pending_memory_dump_filters_.end()) {
     DLOG(WARNING) << "Received unexpected memory dump response: " << dump_guid;
@@ skipping 30 matching lines @@
   const bool global_success = failed_memory_dump_count_ == 0;
   if (!pending_memory_dump_callback_.is_null()) {
     pending_memory_dump_callback_.Run(pending_memory_dump_guid_,
                                       global_success);
     pending_memory_dump_callback_.Reset();
   }
   pending_memory_dump_guid_ = 0;
 }
 
 }  // namespace content