Update gpu/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

gpu/command_buffer/service/gpu_tracer.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 "gpu/command_buffer/service/gpu_tracer.h"
 
 #include <deque>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
@@ skipping 219 matching lines @@
   glDeleteQueries(2, queries_);
 
   TRACE_EVENT_COPY_BEGIN_WITH_ID_TID_AND_TIMESTAMP0("gpu", name().c_str(),
                                    this, outputter_->Id(), start_time_);
   TRACE_EVENT_COPY_END_WITH_ID_TID_AND_TIMESTAMP0("gpu", name().c_str(),
                                    this, outputter_->Id(), end_time_);
 }
 
 bool GPUTracerImpl::Begin(const std::string& name) {
   // Make sure we are not nesting trace commands.
-  if (current_trace_)
+  if (current_trace_.get())
     return false;
 
   current_trace_ = CreateTrace(name);
   current_trace_->Start();
   return true;
 }
 
 bool GPUTracerImpl::End() {
-  if (!current_trace_)
+  if (!current_trace_.get())
     return false;
 
   current_trace_->End();
   if (current_trace_->IsProcessable())
     traces_.push_back(current_trace_);
   current_trace_ = NULL;
 
   IssueProcessTask();
   return true;
 }
 
 void GPUTracerImpl::Process() {
   process_posted_ = false;
 
   while (!traces_.empty() && traces_.front()->IsAvailable()) {
     traces_.front()->Process();
     traces_.pop_front();
   }
 
   IssueProcessTask();
 }
 
 const std::string& GPUTracerImpl::CurrentName() const {
-  if (!current_trace_)
+  if (!current_trace_.get())
     return EmptyString();
   return current_trace_->name();
 }
 
 scoped_refptr<Trace> GPUTracerImpl::CreateTrace(const std::string& name) {
   return new NoopTrace(name);
 }
 
 void GPUTracerImpl::IssueProcessTask() {
   if (traces_.empty() || process_posted_)
@@ skipping 54 matching lines @@
 }  // namespace
 
 scoped_ptr<GPUTracer> GPUTracer::Create() {
   if (gfx::g_driver_gl.ext.b_GL_ARB_timer_query)
     return scoped_ptr<GPUTracer>(new GPUTracerARBTimerQuery());
   return scoped_ptr<GPUTracer>(new GPUTracerImpl());
 }
 
 }  // namespace gles2
 }  // namespace gpu