Remove implicit conversions from scoped_refptr to T* in base/

base/debug/trace_event_impl.cc

 // 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 "base/debug/trace_event_impl.h"
 
 #include <algorithm>
 
 #include "base/base_switches.h"
 #include "base/bind.h"
@@ skipping 1768 matching lines @@
   }
 
   ConvertTraceEventsToTraceFormat(previous_logged_events.Pass(),
                                   flush_output_callback);
 }
 
 // Run in each thread holding a local event buffer.
 void TraceLog::FlushCurrentThread(int generation) {
   {
     AutoLock lock(lock_);
-    if (!CheckGeneration(generation) || !flush_message_loop_proxy_) {
+    if (!CheckGeneration(generation) || !flush_message_loop_proxy_.get()) {
       // This is late. The corresponding flush has finished.
       return;
     }
   }
 
   // This will flush the thread local buffer.
   delete thread_local_event_buffer_.Get();
 
   AutoLock lock(lock_);
-  if (!CheckGeneration(generation) || !flush_message_loop_proxy_ ||
+  if (!CheckGeneration(generation) || !flush_message_loop_proxy_.get() ||
       thread_message_loops_.size())
     return;
 
   flush_message_loop_proxy_->PostTask(
       FROM_HERE,
       Bind(&TraceLog::FinishFlush, Unretained(this), generation));
 }
 
 void TraceLog::OnFlushTimeout(int generation) {
   {
     AutoLock lock(lock_);
-    if (!CheckGeneration(generation) || !flush_message_loop_proxy_) {
+    if (!CheckGeneration(generation) || !flush_message_loop_proxy_.get()) {
       // Flush has finished before timeout.
       return;
     }
 
     LOG(WARNING) <<
         "The following threads haven't finished flush in time. "
         "If this happens stably for some thread, please call "
         "TraceLog::GetInstance()->SetCurrentThreadBlocksMessageLoop() from "
         "the thread to avoid its trace events from being lost.";
     for (hash_set<MessageLoop*>::const_iterator it =
@@ skipping 740 matching lines @@
 }
 
 ScopedTraceBinaryEfficient::~ScopedTraceBinaryEfficient() {
   if (*category_group_enabled_) {
     TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_group_enabled_,
                                                 name_, event_handle_);
   }
 }
 
 }  // namespace trace_event_internal