various: Change auto to not deduce raw pointers.

services/tracing/tracing_app.cc

 // Copyright 2015 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 "services/tracing/tracing_app.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 89 matching lines @@
   MojoTimeTicks end = MojoGetTimeTicksNow() + kTimeToWaitMicros;
 
   while (!recorder_impls_.empty()) {
     MojoTimeTicks now = MojoGetTimeTicksNow();
     if (now >= end)  // Timed out?
       break;
 
     MojoDeadline mojo_deadline = end - now;
     std::vector<mojo::Handle> handles;
     std::vector<MojoHandleSignals> signals;
-    for (const auto& it : recorder_impls_) {
+    for (auto* it : recorder_impls_) {
       handles.push_back(it->TraceRecorderHandle());
       signals.push_back(MOJO_HANDLE_SIGNAL_READABLE |
                         MOJO_HANDLE_SIGNAL_PEER_CLOSED);
     }
     std::vector<MojoHandleSignalsState> signals_states(signals.size());
     const mojo::WaitManyResult wait_many_result =
         mojo::WaitMany(handles, signals, mojo_deadline, &signals_states);
     if (wait_many_result.result == MOJO_RESULT_DEADLINE_EXCEEDED) {
       // Timed out waiting, nothing more to read.
       LOG(WARNING) << "Timed out waiting for trace flush";
@@ skipping 56 matching lines @@
     const GetStartupPerformanceTimesCallback& callback) {
   callback.Run(startup_performance_times_.Clone());
 }
 
 void TracingApp::AllDataCollected() {
   recorder_impls_.clear();
   sink_.reset();
 }
 
 }  // namespace tracing