Stack sampling profiler: run the profiler in the GPU process on trunk builds

base/profiler/stack_sampling_profiler.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 "base/profiler/stack_sampling_profiler.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/profiler/native_stack_sampler.h"
 #include "base/synchronization/lock.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/timer/elapsed_timer.h"
 
 namespace base {
 
 namespace {
 
 // Used to ensure only one profiler is running at a time.
-LazyInstance<Lock> concurrent_profiling_lock = LAZY_INSTANCE_INITIALIZER;
+LazyInstance<Lock>::Leaky concurrent_profiling_lock = LAZY_INSTANCE_INITIALIZER;
 
 // AsyncRunner ----------------------------------------------------------------
 
 // Helper class to allow a profiler to be run completely asynchronously from the
 // initiator, without being concerned with the profiler's lifetime.
 class AsyncRunner {
  public:
   // Sets up a profiler and arranges for it to be deleted on its completed
   // callback.
   static void Run(PlatformThreadId thread_id,
@@ skipping 253 matching lines @@
 }
 
 bool operator<(const StackSamplingProfiler::Frame &a,
                const StackSamplingProfiler::Frame &b) {
   return (a.module_index < b.module_index) ||
       (a.module_index == b.module_index &&
        a.instruction_pointer < b.instruction_pointer);
 }
 
 }  // namespace base